C111123313121111121111331333133313331333132233133313113313331333132222321   >>    C11112331312111112111133133313331333133313223313331311331333133313222232   <<    C111123313121111121111331333133313331333132233133313113313331333132222323   >>      C111123313121111121111331333133313331333132233133313113313331333132222322   >>