#include <iostream> using namespace std; int main() { int a, b; while (cin >> a >> b) { if (a == 0 && b == 0) break; int carry = 0, ans = 0; while (a != 0 || b != 0) { int temp = a % 10 + b % 10 + carry; if (temp >= 10) { carry = temp / 10; ans++; } else { carry = 0; } a...