#include <iostream>
#include <cstdlib>
#include <ctime>

using namespace std;

int cointoss() {
    return rand() % 2;  // 0 or 1
}

int main() {
    srand(time(0));  // seed random number generator

    int flips;
    cout << "How many coin flips: ";
    cin >> flips;
    cout << flips << endl;
    for (int i = 0; i < flips; ++i) {
        int coin = cointoss();
        if (coin == 0) {
            cout << "flip " << i << ": was head" << endl;
        }
        else {
            cout << "flip " << i << ": was tails" << endl;
        }
    }

    return 0;
}