C111123313331323113313331333133313331122112312111112111112111111331311332221   >>    C11112331333132311331333133313331333112211231211111211111211111133131133222   <<    C111123313331323113313331333133313331122112312111112111112111111331311332223   >>      C111123313331323113313331333133313331122112312111112111112111111331311332222   >>