C11111333133313232233133313331333133313231312111113331311111111   >>    C1111133313331323223313331333133313331323131211111333131111111   <<    C11111333133313232233133313331333133313231312111113331311111113   >>      C11111333133313232233133313331333133313231312111113331311111112   >>