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- function demo(input) {
- let mainDiagonal = 0;
- let secondaryDiagonal = 0;
- for (let i = 0; i < input.length; i++) {
- mainDiagonal += input[i][i];
- secondaryDiagonal += input[i][input.length - 1 - i];
- }
- console.log(mainDiagonal, secondaryDiagonal);
- }
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