The input consists of several instances. Each instance is described on a single line containing the following integers separated by a single space: k, a0, , ak-1, b1, , bk, i. Here 1 <= k <= 100 is the order of the sequence, 0 <= ai < 10 000 are the first k elements of the sequence, 0 <= bi < 10 000 are the multipliers and 0 <= i < 1 000 000 000 is the number of the element we ask for.
The input ends with a line containing a number 0.