C111123313331323113313331333133313331323131211113313331323331333132313232331   >>    C11112331333132311331333133313331333132313121111331333132333133313231323233   <<    C111123313331323113313331333133313331323131211113313331323331333132313232333   >>      C111123313331323113313331333133313331323131211113313331323331333132313232332   >>