C111123313331323113313331333133313331323132333131122112323232311   >>    C11112331333132311331333133313331333132313233313112211232323231   <<    C111123313331323113313331333133313331323132333131122112323232313   >>      C111123313331323113313331333133313331323132333131122112323232312   >>