function printAllNumbersAndThenAllPairSums(numbers) { console.log('These are the numbers: '); numbers.foreach(function(number) { console.log(number); }); console.log('and these are their sums: '); numbers.foreach(function (firstNumber) { numbers.foreach(function (secondNumber) { console.log(firstNumber + secondNumber); }); }); } printAllNumbersAndThenAllPairSums([1,2,3,4,5]) // O(n^2)