C11111333133313232233133313331333133313231312111133131333131323331123221   >>    C1111133313331323223313331333133313331323131211113313133313132333112322   <<    C11111333133313232233133313331333133313231312111133131333131323331123223   >>      C11111333133313232233133313331333133313231312111133131333131323331123222   >>