C312312111133131212111133133313231333133313331323222321333132322131   >>    C31231211113313121211113313331323133313331333132322232133313232213   <<    C312312111133131212111133133313231333133313331323222321333132322133   >>      C312312111133131212111133133313231333133313331323222321333132322132   >>