C1111233131211111211113313331323133313231333133313231331121111331333132332211   >>    C111123313121111121111331333132313331323133313331323133112111133133313233221   <<    C1111233131211111211113313331323133313231333133313231331121111331333132332213   >>      C1111233131211111211113313331323133313231333133313231331121111331333132332212   >>