xmul(2,4)%&mul[3,7]!@^do_not_mul(5,5)+mul(32,64]then(mul(11,8)mul(8,5))
xmul(2,4)&mul[3,7]!^do(2,4)don't()_mul(5,5)+mul(32,64](mul(11,8)undo()?mul(8,5))