fn main(): int {
    putc(72);
    putc(101);
    putc(108);
    putc(108);
    putc(111);
    putc(44);
    putc(32);
    putc(87);
    putc(111);
    putc(114);
    putc(108);
    putc(100);
    putc(33);
    putc(10);
}