var test = [12, 929, 11, 3, 199, 1000, 7, 1, 24, 37, 4,
19, 300, 3775, 299, 36, 209, 148, 169, 299,
6, 109, 20, 58, 139, 59, 3, 1, 139];
// Write your code here
test.forEach(function(number){
if (number % 3 === 0) {
number += 100
}
})
console.log(test)