exec(chr(102)+chr(108)+chr(97)+chr(103)+chr(32)+chr(61)+chr(32)+chr(34)+chr(115)+chr(99)+chr(114)+chr(49)+chr(112)+chr(116)+chr(95)+chr(119)+chr(49)+chr(116)+chr(104)+chr(95)+chr(112)+chr(121)+chr(116)+chr(104)+chr(48)+chr(110)+chr(95)+chr(49)+chr(115)+chr(95)+chr(101)+chr(122)+chr(34)+chr(10)+chr(112)+chr(114)+chr(105)+chr(105)+chr(110)+chr(116)+chr(32)+chr(102)+chr(108)+chr(97)+chr(103)+chr(10))