C1111233131211111211113313231333133313331323221333132333133322231   >>    C111123313121111121111331323133313331333132322133313233313332223   <<    C1111233131211111211113313231333133313331323221333132333133322233   >>      C1111233131211111211113313231333133313331323221333132333133322232   >>