magictrick.cc

#include <iostream>
#include <algorithm>
#include <string>

int main () {
    std::string input;
    std::cin >> input;
    std::sort(begin(input), end(input));
    for (int i = 0; i < input.length()-1; i++) {
        if (input[i] == input[i+1]) {
            std::cout << 0 << std::endl;
            return 0;
        }
    }
    std::cout << 1 << std::endl;
    return 0;
}