C11111333133313232233133313331333133313331312111133133313231333133313231312111   >>    C1111133313331323223313331333133313331333131211113313331323133313331323131211   <<    C11111333133313232233133313331333133313331312111133133313231333133313231312113   >>      C11111333133313232233133313331333133313331312111133133313231333133313231312112   >>