diff --git a/computer-science/01-introduction-to-cs-and-programming-mit/src/01-01-problem-set.js b/computer-science/01-introduction-to-cs-and-programming-mit/src/01-01-problem-set.js
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+/*
+*
+* Write a program to calculate the credit card balance after one year 
+* if a person only pays the minimum monthly payment required by the credit
+* card company each month.
+*
+* Use raw_input() to ask for the following three floating point numbers:
+*
+*   1. the outstanding balance on the credit card
+*   2. annual interest rate
+*   3. minimum monthly payment rate
+*
+* For each month, print the minimum monthly payment, remaining balance, 
+*   principle paid in the format shown in the test cases below. 
+* All numbers should be rounded to the nearest penny. Finally, print the result,
+*   which should include the total amount paid that year and the remaining balance. 
+*
+*   - Minimum monthly payment = Minimum monthly payment rate x Balance
+*       (Minimum monthly payment gets split into interest paid and principal paid)
+*   - Interest Paid = Annual interest rate / 12 months x Balance
+*   - Principal paid = Minimum monthly payment – Interest paid
+*   - Remaining balance = Balance – Principal paid 
+*
+* http://bit.ly/1S6Tdys
+*
+*/
+var prompt = require( 'prompt' );
+
+prompt.start();
+prompt.get([
+  {
+    name : 'balance',
+    description : 'Outstanding balance'
+  },
+  {
+    name : 'interest',
+    description : 'Annual interest rate'
+  },
+  {
+    name : 'minimum',
+    description : 'Minimum monthly payment rate'
+  }
+], function( err, results ) {
+
+  var initialBalance = results.balance;
+  var interest = results.interest;
+  var minPayment = results.minimum;
+
+
+});