C11111333133313232233133313331333133313331312111133133313231333133313113213321   >>    C1111133313331323223313331333133313331333131211113313331323133313331311321332   <<    C11111333133313232233133313331333133313331312111133133313231333133313113213323   >>      C11111333133313232233133313331333133313331312111133133313231333133313113213322   >>