C111123313331323113313331333133313331323131211113313113313332331321   >>    C11112331333132311331333133313331333132313121111331311331333233132   <<    C111123313331323113313331333133313331323131211113313113313332331323   >>      C111123313331323113313331333133313331323131211113313113313332331322   >>