C11111333133313232233133313331333133313231312111133131121112231   >>    C1111133313331323223313331333133313331323131211113313112111223   <<    C11111333133313232233133313331333133313231312111133131121112233   >>      C11111333133313232233133313331333133313231312111133131121112232   >>