C1111233133313231133133313331333132313331333133313311211113311321   >>    C111123313331323113313331333133313231333133313331331121111331132   <<    C1111233133313231133133313331333132313331333133313311211113311323   >>      C1111233133313231133133313331333132313331333133313311211113311322   >>