C1111233131211111211113313331323133313331322121311331323132233131   >>    C111123313121111121111331333132313331333132212131133132313223313   <<    C1111233131211111211113313331323133313331322121311331323132233133   >>      C1111233131211111211113313331323133313331322121311331323132233132   >>