#include <iostream>
#include <string>
using namespace std;
#define int long long
signed main() {
	string a;
	cin >> a;
	int b[1000001] = {0};
	int len = a.length();
	int c[1000001] = {0};
	for (int i = 0; i < len; i++) {
		c[i] = a[i] - '0';
	}
	c[len - 1] += 2;
	int ans = 0;
	for (int i = len - 1; i >= 0; i--) {
		if (c[i] >= 10) {
			b[ans] = c[i] - 10;
			ans++;
			if (i == 0) {
				b[ans] = 1;
				ans++;
			} else {
				c[i - 1]++;
			}
		} else {
			b[ans] = c[i];
			ans++;
		}
	}
	for (int i = ans - 1; i >= 0; i--) {
		cout << b[i];
	}
	return 0;
}