@@ -9,8 +9,17 @@ Once you have found those numbers, multiply the numbers and store the result of
 
 const list = [1721, 979, 366, 299, 675, 1456];
 let result;
-    
-// Write your code here
+const addResult = 2020;
+
+for(let ii = 0; ii < list.length; ii++){
+    for(let jj = ii + 1; jj < list.length; jj++){
+        if(list[ii] + list[jj] === addResult) {
+            result = list[ii] * list[jj];
+            // break statement here
+        }
+    }
+    // break statement here
+}
 
 
 // TEST CODE, do not change
 
@@ -9,9 +9,20 @@ Once you have found those numbers, multiply the numbers and store the result of
 
 const list = [1721, 979, 366, 299, 675, 1456];
 let result;
-    
-// Write your code here
+const addUpResult = 2020;
 
+for(let ii = 0; ii < list.length; ii++){
+    for(let jj = ii + 1; jj < list.length; jj++){
+        for (let kk = ii + 1; kk < list.length; kk++){
+            if (list[ii] + list[jj] + list[kk] === addUpResult){
+                result = list[ii] * list[jj] * list[kk];
+                // break statement here
+            }
+        }
+        // break statement here
+    }
+    // break statement here
+}
 
 // TEST CODE, do not change
 console.assert(result === 241861950, `The result is not correct, it is ${result}, but should be 241861950`);
@@ -20,4 +20,24 @@ const passwordList = [
     { times: '1-3', letter: 'a', password: 'abcde'},
     { times: '1-3', letter: 'b', password: 'cdefg'},
     { times: '2-9', letter: 'c', password: 'ccccccccc'}
-];
+];
+
+const splitStr = input => input.split('-').map(char => Number(char));
+
+const validatePassword = passwordList => {
+    passwordList.forEach(({times, letter, password}) => {
+
+    const passwordChar = password.split('');
+    let letterCounts = passwordChar.filter(character => { return character === letter; }).length;
+   
+    const result = splitStr(times);
+    if(letterCounts < result[0] || letterCounts > result[1]){
+        console.log(`'${password}' is INVALID ${letter} is present ${letterCounts} times and should have been present at least ${result[0]} and at most ${result[1]} times`);
+       }else{
+           console.log(`'${password}' is VALID ${letter} is present ${letterCounts} times and should have been present at least ${result[0]} and at most ${result[1]} times`);
+       }
+ }); 
+};
+
+validatePassword(passwordList)
+
@@ -27,11 +27,26 @@ const bankAccount = {
   ],
 };
 
+const createTransaction = (amount, onSuccess, onFail, reason) => {
+  if (amount > bankAccount.currentBalance) {
+    onFail();
+    return 0;
+  }
+
+  bankAccount.transactions.push({
+    prevAmount: bankAccount.currentBalance,
+    newAmount: bankAccount.currentBalance - amount,
+    reason: reason
+  });
+  bankAccount.currentBalance -= amount;
+  onSuccess();
+};
+
 const donateMoney = (amount, onSuccess, onFail) => {
-  // TODO complete this function
+  createTransaction(amount, onSuccess, onFail, "Donation");
 };
 const payRent = (amount, onSuccess, onFail) => {
-  // TODO complete this function
+  createTransaction(amount, onSuccess, onFail, "Rent");
 };
 
 /**