#include <stdio.h>
int main()
{
char line[100];
int c;
// Ignore the rest of the line.
while ( (c
= fgetc(stdin
)) != '\n' && c
!= EOF
);
}
I2luY2x1ZGUgPHN0ZGlvLmg+CgppbnQgbWFpbigpCnsKICAgY2hhciBsaW5lWzEwMF07CiAgIGludCBjOwoKICAgLy8gSWdub3JlIHRoZSByZXN0IG9mIHRoZSBsaW5lLgogICB3aGlsZSAoIChjID0gZmdldGMoc3RkaW4pKSAhPSAnXG4nICYmIGMgIT0gRU9GKTsKCiAgIGZnZXRzKGxpbmUsIDEwMCwgc3RkaW4pOwogICBwcmludGYoIiVzIiwgbGluZSk7Cn0K