|시간 제한||메모리 제한||제출||정답||맞은 사람||정답 비율|
|1 초||128 MB||21||19||18||90.000%|
Bessie discovered a new function that the entire herd can apply to its character strings.
Given both a number N (1 <= N <= 15) and a string S, with length strictly greater than N, define f(N, S) as a new string composed of the concatenation of the substring from character N (zero based -- first character is number 0) through the end of S and the string S itself.
For example, with N = 2, and S = "COW", f(N, S) = "W" + "COW" = "WCOW". Also, f(3, "USACO") = "CO" + "USACO" = "COUSACO".
Bessie is enthralled with this function and wants to iterate it several times. For example, if she iterates the function once for "COW" and N = 2, she will get "WCOW". If she applies the function with N = 2 again to that string, she will get "OWWCOW", and if she applies it one more time with N = 2, she will get "WCOWOWWCOW".
Help Bessie encode a total of Z (1 <= Z <= 100) strings, str_1, str_2, and so on. Each str_i has length in the range 2..100 and contains only upper case letters. Each string is presented with its own N_i (0 <= N_i < length(str_i), and iteration count C_i (1 <= C_i <= 12).
2 2 3 COW 3 2 USACO
The arrow denotes an iteration of the function