#include <unistd.h>

char* world = "World! \n";
float o = 0.075, h = 1.425, T = -2, r, O, l, I;
int underscore, L=80, s=3200;

char* foo() {
    int bar;

    --s;
    if (s % L) {
        bar = underscore < L ? --underscore % 6 : 6;
    } else {
        bar = 7;
    }

    return (bar + world);
}

int main() {
    for( ; s ; ) {
        O = I * 2 * O + h;
        I = l + T - r;

        r = O * O;
        l = I * I;
        ++underscore;

        if (4 - r < l || underscore == L) {
            write(1, foo(), 1);
            O = I = l = underscore = r = 0;
            T += o / 2;
        }

        s % L || (h -= o, T = -2);
    }

    return 0;
}