C111123313331323113313331333133313331122112312111112111112111113331333222221   >>    C11112331333132311331333133313331333112211231211111211111211111333133322222   <<    C111123313331323113313331333133313331122112312111112111112111113331333222223   >>      C111123313331323113313331333133313331122112312111112111112111113331333222222   >>