C1111233133313231133133313331333132313331323132233131211113311321   >>    C111123313331323113313331333133313231333132313223313121111331132   <<    C1111233133313231133133313331333132313331323132233131211113311323   >>      C1111233133313231133133313331333132313331323132233131211113311322   >>