C1111233131211111211113313231333133313331323221211113313311211111322131121   >>    C111123313121111121111331323133313331333132322121111331331121111132213112   <<    C1111233131211111211113313231333133313331323221211113313311211111322131123   >>      C1111233131211111211113313231333133313331323221211113313311211111322131122   >>