C312312111133131212111133133313231333132311331333133313331323211331311   >>    C31231211113313121211113313331323133313231133133313331333132321133131   <<    C312312111133131212111133133313231333132311331333133313331323211331313   >>      C312312111133131212111133133313231333132311331333133313331323211331312   >>