C111123313331323113313331333133313331323131211113313331323331323313331   >>    C11112331333132311331333133313331333132313121111331333132333132331333   <<    C111123313331323113313331333133313331323131211113313331323331323313333   >>      C111123313331323113313331333133313331323131211113313331323331323313332   >>