C1111233131211111211113313331333133313231121133212331323132233131   >>    C111123313121111121111331333133313331323112113321233132313223313   <<    C1111233131211111211113313331333133313231121133212331323132233133   >>      C1111233131211111211113313331333133313231121133212331323132233132   >>