Suppose that we modified cc-check so that, instead of doubling odd-indexed digits in Line 4 of the algorithm, we instead tripled the odd-indexed digits. (That is, replace Line 4 by di := 3 ni .) Does...

Suppose that we modified cc-check so that, instead of doubling odd-indexed digits in Line 4 of the algorithm, we instead tripled the odd-indexed digits. (That is, replace Line 4 by di := 3 ni .) Does this modified code still allow us to detect any single substitution error?