C312312111133131212111133133313231333133313331333132313331333133313231312323221   >>    C31231211113313121211113313331323133313331333133313231333133313331323131232322   <<    C312312111133131212111133133313231333133313331333132313331333133313231312323223   >>      C312312111133131212111133133313231333133313331333132313331333133313231312323222   >>