C1111233131211111211113313331333132213331311212111133132313331323221211   >>    C111123313121111121111331333133313221333131121211113313231333132322121   <<    C1111233131211111211113313331333132213331311212111133132313331323221213   >>      C1111233131211111211113313331333132213331311212111133132313331323221212   >>