No tag edit access

E. Puzzle Lover

time limit per test

2 secondsmemory limit per test

256 megabytesinput

standard inputoutput

standard outputOleg Petrov loves crossword puzzles and every Thursday he buys his favorite magazine with crosswords and other word puzzles. In the last magazine Oleg found a curious puzzle, and the magazine promised a valuable prize for it's solution. We give a formal description of the problem below.

The puzzle field consists of two rows, each row contains *n* cells. Each cell contains exactly one small English letter. You also are given a word *w*, which consists of *k* small English letters. A solution of the puzzle is a sequence of field cells *c*_{1}, ..., *c*_{k}, such that:

- For all
*i*from 1 to*k*the letter written in the cell*c*_{i}matches the letter*w*_{i}; - All the cells in the sequence are pairwise distinct;
- For all
*i*from 1 to*k*- 1 cells*c*_{i}and*c*_{i + 1}have a common side.

Oleg Petrov quickly found a solution for the puzzle. Now he wonders, how many distinct solutions are there for this puzzle. Oleg Petrov doesn't like too large numbers, so calculate the answer modulo 10^{9} + 7.

Two solutions *c*_{i} and *c*'_{i} are considered distinct if the sequences of cells do not match in at least one position, that is there is such *j* in range from 1 to *k*, such that *c*_{j} ≠ *c*'_{j}.

Input

The first two lines contain the state of the field for the puzzle. Each of these non-empty lines contains exactly *n* small English letters.

The next line is left empty.

The next line is non-empty and contains word *w*, consisting of small English letters.

The length of each line doesn't exceed 2 000.

Output

Print a single integer — the number of distinct solutions for the puzzle modulo 10^{9} + 7.

Examples

Input

code

edoc

code

Output

4

Input

aaa

aaa

aa

Output

14

Codeforces (c) Copyright 2010-2017 Mike Mirzayanov

The only programming contests Web 2.0 platform

Server time: May/28/2017 02:05:29 (c2).

Desktop version, switch to mobile version.
User lists

Name |
---|