int main() {
    int i = 0;
    while (i < 3) {
        print(i);
        i = i + 1;
    }

    int j = 0;
    do {
        print(j);
        j = j + 1;
    } while (j < 3);

    for (int k = 0; k < 3; k = k + 1) {
        print(k);
    }
    return 0;
}