C1111233133313231133133313231333133313113313113313331331121111331333232133121   >>    C111123313331323113313331323133313331311331311331333133112111133133323213312   <<    C1111233133313231133133313231333133313113313113313331331121111331333232133123   >>      C1111233133313231133133313231333133313113313113313331331121111331333232133122   >>