C1111233131211111211113313231333133313331323221333133313112113121333131   >>    C111123313121111121111331323133313331333132322133313331311211312133313   <<    C1111233131211111211113313231333133313331323221333133313112113121333133   >>      C1111233131211111211113313231333133313331323221333133313112113121333132   >>