#include <iostream>

using namespace std;

int main() {

	const int num=3;
	int a[num], b[num];

	for (int i = 0; i < num; i++) {
		cin >> a[i] >> b[i];
	}

	for (int i = 0; i < num; i++) {

		int sum = a[i] + b[i];
		int keta = 1;
		while (1) {
			if (sum >= 10) {
				keta++;
				sum /= 10;
			}
			else {
				break;
			}
		}

		cout << keta << endl;

	}

	return 0;

}