C1111233133313231133133313331333133313231312111133133313113313232222321131211   >>    C111123313331323113313331333133313331323131211113313331311331323222232113121   <<    C1111233133313231133133313331333133313231312111133133313113313232222321131213   >>      C1111233133313231133133313331333133313231312111133133313113313232222321131212   >>