by@akouryy1
AC
566ms
i=0;gets.chop.chars{|c|p i^=c.to_i}
1111110111110010100010111001000011010001001001001011011100101010011111101001001001101101100011000111
1 0 1 0 1 0 0 1 0 1 0 1 1 1 0 0 1 1 1 1 0 0 1 0 1 1 1 0 0 0 0 0 1 0 0 1 1 1 1 0 0 0 1 1 1 0 0 0 1 1 0 1 1 0 1 0 0 0 1 1 0 0 1 1 1 0 1 0 1 0 1 1 0 0 0 1 1 1 0 0 0 1 0 0 1 0 0 1 0 0 0 0 1 0 0 0 0 1 0 1