#include <iostream>
using namespace std;

int main() {
	int limit = 5;
	int sum = 0;
	char c;
	int d;
	
	while(limit --> 0) {
	  if (cin >> c) {
	  	d = c - '0';
	  	if (d > 9 || d < 0) {
	  		cout << "Wrong digit: " << c << endl;
	  	} else {
	  		sum += d;
	  	}
	  } else {
	  	break;
	  }
	}
	
	cout << "Sum: " << sum << endl;
	return 0;
}