diff --git a/01/TaskPart1 b/01/TaskPart1
new file mode 100644
index 0000000..b96f570
--- /dev/null
+++ b/01/TaskPart1
@@ -0,0 +1,16 @@
+After feeling like you've been falling for a few minutes, you look at the device's tiny screen. "Error: Device must be calibrated before first use. Frequency drift detected. Cannot maintain destination lock." Below the message, the device shows a sequence of changes in frequency (your puzzle input). A value like +6 means the current frequency increases by 6; a value like -3 means the current frequency decreases by 3.
+
+For example, if the device displays frequency changes of +1, -2, +3, +1, then starting from a frequency of zero, the following changes would occur:
+
+Current frequency  0, change of +1; resulting frequency  1.
+Current frequency  1, change of -2; resulting frequency -1.
+Current frequency -1, change of +3; resulting frequency  2.
+Current frequency  2, change of +1; resulting frequency  3.
+In this example, the resulting frequency is 3.
+
+Here are other example situations:
+
++1, +1, +1 results in  3
++1, +1, -2 results in  0
+-1, -2, -3 results in -6
+Starting with a frequency of zero, what is the resulting frequency after all of the changes in frequency have been applied?
\ No newline at end of file
diff --git a/01/TaskPart2 b/01/TaskPart2
new file mode 100644
index 0000000..3a3ae63
--- /dev/null
+++ b/01/TaskPart2
@@ -0,0 +1,20 @@
+You notice that the device repeats the same frequency change list over and over. To calibrate the device, you need to find the first frequency it reaches twice.
+
+For example, using the same list of changes above, the device would loop as follows:
+
+Current frequency  0, change of +1; resulting frequency  1.
+Current frequency  1, change of -2; resulting frequency -1.
+Current frequency -1, change of +3; resulting frequency  2.
+Current frequency  2, change of +1; resulting frequency  3.
+(At this point, the device continues from the start of the list.)
+Current frequency  3, change of +1; resulting frequency  4.
+Current frequency  4, change of -2; resulting frequency  2, which has already been seen.
+In this example, the first frequency reached twice is 2. Note that your device might need to repeat its list of frequency changes many times before a duplicate frequency is found, and that duplicates might be found while in the middle of processing the list.
+
+Here are other examples:
+
++1, -1 first reaches 0 twice.
++3, +3, +4, -2, -4 first reaches 10 twice.
+-6, +3, +8, +5, -6 first reaches 5 twice.
++7, +7, -2, -7, -4 first reaches 14 twice.
+What is the first frequency your device reaches twice?
\ No newline at end of file
diff --git a/01/input.txt b/01/input.txt
new file mode 100644
index 0000000..8222427
--- /dev/null
+++ b/01/input.txt
@@ -0,0 +1,977 @@
+-12
+-6
+-12
++1
++3
++3
+-1
++10
+-8
+-9
+-11
+-2
+-7
++15
++16
++14
+-2
+-5
++11
+-8
+-5
+-1
+-19
+-14
++6
+-16
+-8
+-13
+-19
+-11
++3
+-19
++3
+-19
++9
+-15
+-11
++18
+-9
++13
+-17
+-16
+-13
+-16
++19
++17
+-18
+-8
+-5
++6
++9
++8
+-7
+-8
++2
+-9
++2
+-9
+-5
+-3
++4
+-13
+-5
++11
++14
++5
++17
+-1
++9
++6
++14
+-9
++4
+-3
+-13
+-5
++13
+-2
+-10
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+-12
++4
++13
+-10
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+-17
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+-19
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+-13
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++7
++17
+-14
++22
++14
++7
+-8
++7
+-19
++14
+-20
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++12
++3
++5
++1
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++15
++3
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++3
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++4
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++6
++24
++12
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++21
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+-3
++21
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++16
+-4
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++13
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+-1
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++13
++19
++14
++19
++14
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++11
++18
++18
++22
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++18
+-1
++19
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++3
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++7
++19
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++20
++20
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++3
++1
++17
++11
+-7
++15
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+-10
++13
+-24
+-21
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+-14
++6
++3
+-25
++9
+-7
++15
++12
++14
++20
+-11
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+-9
+-2
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+-3
+-1
+-18
+-2
++6
++17
++9
+-1
++18
++20
++21
++27
+-17
+-11
+-4
+-18
++24
++33
++4
++12
++8
++8
+-1
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++6
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++16
++4
++1
++6
+-1
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++18
++15
++17
+-4
++13
++1
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++18
++3
+-16
+-4
+-12
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+-18
++22
++21
++12
++1
++6
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++7
++1
++11
++14
++20
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+-2
++4
++9
+-20
++60
++15
++18
++14
+-19
++13
++3
++7
++8
++5
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+-13
++20
++5
+-1
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++29
++14
+-19
++7
+-10
++13
++3
+-7
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++8
+-15
+-13
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+-1
+-9
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++10
+-9
++18
+-3
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++21
++2
++7
++7
++10
+-15
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+-6
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++11
++13
++7
++10
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++17
++22
++23
++15
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++32
++7
+-5
+-3
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++12
++10
+-12
++17
++1
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++16
++14
+-2
++1
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++17
++16
+-8
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++18
++19
++14
++52
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++13
++6
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++20
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++119
++20
++26
++4
++9
++14
+-42
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++44
++18
+-23
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++15
++52
++29
+-7
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++31
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++5
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++435
++15
+-156
++71279
+-19
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++11
+-4
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++8
++14
++19
+-16
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++19
++3
+-7
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++14
++8
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++7
++10
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++17
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++17
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++11
+-3
++10
++1
++8
+-7
++26
++17
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++22
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++9
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++3
++13
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++6
++15
++19
++7
++7
+-18
++15
++14
++3
++10
+-3
++2
++8
++9
+-6
++10
++1
++15
+-3
+-11
++5
+-8
+-15
++11
+-3
+-19
+-15
+-10
++12
+-8
++7
++2
++8
++3
+-18
++3
+-2
+-5
+-7
++21
++4
+-6
++1
++3
++15
+-16
++24
++15
+-16
+-2
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++10
+-11
++17
++15
++8
++11
++21
++5
++12
++13
+-15
+-16
+-14
++2
+-11
++14
+-13
++12
+-17
++6
+-13
++9
+-1
++20
+-18
+-18
+-21
+-6
++21
++13
+-12
+-15
+-5
++39
++20
++13
++6
+-1
++12
++1
+-3
++14
+-5
+-3
++17
++12
+-13
++18
++16
+-12
+-16
+-9
++5
+-7
+-1
+-17
+-4
+-8
++5
+-13
++9
+-19
++15
++13
+-19
+-15
+-2
++14
+-2
+-8
++2
++15
+-5
+-13
++19
++21
++3
++11
+-17
++12
++17
++19
+-16
++17
++5
+-10
++13
++3
+-8
++18
+-8
+-9
+-11
++5
+-11
+-10
+-19
++7
+-3
+-7
+-11
++26
+-10
++16
++13
+-10
++5
++7
+-16
++22
+-9
+-6
++40
+-13
++7
+-9
++20
++7
++8
+-6
++3
+-10
+-14
++10
+-2
++15
+-3
++2
++17
++4
++3
++13
++15
+-8
++16
++9
+-10
++7
++4
++9
+-4
++1
+-13
+-1
++10
+-19
++20
+-8
+-9
+-6
+-15
+-8
++11
++17
++9
+-7
+-17
+-7
++9
++4
+-7
++6
++9
+-13
+-5
+-8
++6
+-2
+-16
++10
+-15
++7
++4
++3
+-2
++6
+-14
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+-10
++11
+-10
++2
+-15
+-6
++8
+-6
+-4
++22
+-6
++17
++8
++6
+-8
+-4
+-21
+-7
++2
++9
+-26
+-6
++5
+-20
+-38
+-4
+-45
+-15
++14
+-3
+-12
++22
++12
+-15
++29
+-95
+-15
+-3
++1
+-31
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+-17
+-7
+-15
+-5
++2
+-3
++15
++12
+-5
+-10
++1
++7
+-6
++17
++2
++2
+-19
+-7
++15
+-6
+-7
+-1
++7
+-12
+-6
+-18
+-14
++6
+-4
+-16
+-13
++5
+-13
++4
++16
+-8
++13
++11
+-2
+-7
+-5
+-8
++1
++9
++6
+-2
++19
+-4
++5
++10
++2
+-9
++10
+-15
++7
++11
++6
+-14
+-11
+-6
++3
+-16
+-19
+-6
+-3
+-3
+-11
++19
++16
+-10
++14
++15
++2
++15
++21
++15
++7
++19
++2
++52
++13
++24
+-32
+-126
+-18
++1
+-17
+-14
+-14
++3
+-19
+-17
++13
++17
+-20
+-1
++17
++2
++14
+-7
+-8
++12
+-1
+-14
++1
++26
+-14
+-17
++3
+-17
++13
+-3
++5
+-7
++20
+-2
++24
++20
+-13
+-19
+-22
+-19
++12
++35
++5
++34
++8
++2
++11
+-2
+-1
++13
+-9
+-7
+-2
+-28
+-33
+-71491
\ No newline at end of file
diff --git a/01/inputtest.txt b/01/inputtest.txt
new file mode 100644
index 0000000..4187e54
--- /dev/null
+++ b/01/inputtest.txt
@@ -0,0 +1,9 @@
++3
++12
+-6
+-2
+-4
+-12
++4
++5
+-7
\ No newline at end of file
diff --git a/01/solution01.js b/01/solution01.js
new file mode 100644
index 0000000..efaef35
--- /dev/null
+++ b/01/solution01.js
@@ -0,0 +1,17 @@
+// AdventOfCode2018-01
+var fs = require('fs');
+var frequency = 0; 
+
+var textFile = fs.readFileSync('./input.txt').toString();
+var textArray = textFile.split(/\r?\n/);
+
+textArray.forEach(line => {
+    if (line.substr(0,1) == '+') {
+        frequency += parseInt(line.substr(1));
+    }
+    else {
+        frequency -= parseInt(line.substr(1));
+    }
+});
+
+console.log('The resulting frequency is ' + frequency);
\ No newline at end of file
diff --git a/01/solution01a.js.old b/01/solution01a.js.old
new file mode 100644
index 0000000..02b0463
--- /dev/null
+++ b/01/solution01a.js.old
@@ -0,0 +1,50 @@
+// AdventOfCode2018-01
+var freqChanges = [];
+
+function parseInput(inputFile) {
+    // for each line in text file parse the symbol (first character) and the number into an array of objects 
+    var fs = require('fs'),
+    readline = require('readline'),
+    instream = fs.createReadStream(inputFile),
+    outstream = new (require('stream'))(),
+    rl = readline.createInterface(instream, outstream);
+     
+    rl.on('line', function (line) {
+        var object = {
+            operation: line.substr(0,1),
+            value: parseInt(line.substr(1))
+          }
+        freqChanges.push(object);
+    });
+    
+    rl.on('close', function (line) {
+        //console.log(line);
+        //console.log('done reading file.');
+    });
+}
+
+parseInput('./input1.txt');
+
+// Starting from zero, loop through all the entries in the array and apply the operations
+var frequency = 0; 
+console.log('length=' + freqChanges.length);
+freqChanges.forEach( function (object) {
+    console.log('Object contains ' + object.toString());
+    if (object.operation == '+') {
+        frequency += object.value;
+    }
+    else {
+        frequency -= object.value;
+    }
+});
+// for (i in freqChanges) { //(var i = 0; i < freqChanges.length; i++) {
+//     console.log(freqChanges[i].toString());
+//     if (freqChanges[i].operation = '+') {
+//         frequency += freqChanges[i].value;
+//     }
+//     else {
+//         frequency -= freqChanges[i].value;
+//     }
+// }
+
+console.log('The resulting frequency is ' + frequency);
\ No newline at end of file
diff --git a/01/solution01b.js.old b/01/solution01b.js.old
new file mode 100644
index 0000000..fdf452b
--- /dev/null
+++ b/01/solution01b.js.old
@@ -0,0 +1,29 @@
+// AdventOfCode2018-01
+
+var frequency = 0; 
+
+// for each line in text file parse the symbol (first character) and the number into an array of objects 
+var fs = require('fs'),
+readline = require('readline'),
+instream = fs.createReadStream('./input1.txt'),
+outstream = new (require('stream'))(),
+rl = readline.createInterface(instream, outstream);
+    
+rl.on('line', function (line) {
+    console.log(line.substr(0,1));
+    if (line.substr(0,1) = '+') {
+        console.log(parseInt(line.substr(1)));
+        frequency += parseInt(line.substr(1));
+    }
+    else {
+        console.log(parseInt(line.substr(1)));
+        frequency -= parseInt(line.substr(1));
+    }
+});
+
+rl.on('close', function (line) {
+    //console.log(line);
+    //console.log('done reading file.');
+});
+
+console.log('The resulting frequency is ' + frequency);
\ No newline at end of file
diff --git a/01/solution02.js b/01/solution02.js
new file mode 100644
index 0000000..97461be
--- /dev/null
+++ b/01/solution02.js
@@ -0,0 +1,33 @@
+// AdventOfCode2018-01
+var fs = require('fs');
+var frequency = 0; 
+var frequencyHistory = [];
+var loopCount = 0;
+
+var textFile = fs.readFileSync('./input.txt').toString();
+var textArray = textFile.split(/\r?\n/);
+
+var foundDuplicate = false;
+while (!foundDuplicate) {
+    for (var line of textArray) {
+        if (line.substr(0,1) == '+') {
+            frequency += parseInt(line.substr(1));
+        }
+        else {
+            frequency -= parseInt(line.substr(1));
+        }
+        //console.log(frequency.toString());
+        if (frequencyHistory.includes(frequency)) {
+            console.log('The first repeated frequency is ' + frequency);
+            firstRepeatedFrequency = frequency;
+            foundDuplicate = true;
+            break;
+        }
+        else {
+            frequencyHistory.push(frequency);
+        }
+    };
+    loopCount += 1;
+}
+
+console.log(loopCount);
\ No newline at end of file