C111113331333132322331333133313331333133313121111331331121111133313231312121   >>    C11111333133313232233133313331333133313331312111133133112111113331323131212   <<    C111113331333132322331333133313331333133313121111331331121111133313231312123   >>      C111113331333132322331333133313331333133313121111331331121111133313231312122   >>