#include <stdio.h>
int main( )
{
char a = 'h', b = 'e', c = 'l', d = 'o', e = ' ';
return 0;
}
I2luY2x1ZGUgPHN0ZGlvLmg+CiAKaW50IG1haW4oICApCnsKCWNoYXIgYSA9ICdoJywgYiA9ICdlJywgYyA9ICdsJywgZCA9ICdvJywgZSA9ICcgJzsKCXB1dGNoYXIoZSk7CXB1dGNoYXIoYSk7CXB1dGNoYXIoYik7cHV0Y2hhcihjKTtwdXRjaGFyKGMpO3B1dGNoYXIoZCk7CglwdXRjaGFyKGEpOwoJcHV0Y2hhcihiKTsKCXB1dGNoYXIoYyk7CglwdXRjaGFyKGMpOwoJcHV0Y2hhcihkKTsKCXB1dHMoIndvcmxkIik7CglyZXR1cm4gMDsKfQ==