C1111233131211111211113313331333133313231323331323231323132233131111   >>    C111123313121111121111331333133313331323132333132323132313223313111   <<    C1111233131211111211113313331333133313231323331323231323132233131113   >>      C1111233131211111211113313331333133313231323331323231323132233131112   >>