#include <stdio.h>
int main(void) {
// your code goes here
printf("H \ne \nl\nlo \nWor\nld \n"); return 0;
}
I2luY2x1ZGUgPHN0ZGlvLmg+CgppbnQgbWFpbih2b2lkKSB7CgkvLyB5b3VyIGNvZGUgZ29lcyBoZXJlCglwcmludGYoIkggXG5lIFxubFxubG8gXG5Xb3JcbmxkIFxuIik7CglyZXR1cm4gMDsKfQo=