#include <iostream>
#include <string.h>
using namespace std;
char license[100];

int main(){
    cout << "Please enter license: ";
    cin >> license;
    cout << "Checking License: " << license << "\n";
    int sum = 0;
    for(int i = 0;i < strlen(license); i++){
        sum += (int)license[i];
    }
    if(sum==2015) {
        cout << "License is valid!\n";
    } else {
        cout << "License is not valid! Maybe you made a typo?\n";
    }
    return 0;
}