C++ - Zadatak Recesija

// Zadatak: Recesija

#include <iostream>
#include <cstdlib>

using namespace std;

int main () {
    int k;
    char s;
    cin >> k;
    k--;
    for (int i=0 ; i<4 ; i++) {
        cin >> s;
        switch (s) {
            case '+':
                k+=1;
            break;
            case '-':
                k+=3;
            break;
            case '*':
                k+=2;
            break;
        }
        k %= 4;
    }

    cout << (k + 1) << endl;


    return 0;
}