Package for this problem was not updated by the problem writer or Codeforces administration after we’ve upgraded the judging servers. To adjust the time limit constraint, solution execution time will be multiplied by 2. For example, if your solution works for 400 ms on judging servers, then value 800 ms will be displayed and used to determine the verdict.

Virtual contest is a way to take part in past contest, as close as possible to participation on time. It is supported only ICPC mode for virtual contests.
If you've seen these problems, a virtual contest is not for you - solve these problems in the archive.
If you just want to solve some problem from a contest, a virtual contest is not for you - solve this problem in the archive.
Never use someone else's code, read the tutorials or communicate with other person during a virtual contest.

No tag edit access

The problem statement has recently been changed. View the changes.

×
B. Numbers

time limit per test

2 secondsmemory limit per test

256 megabytesinput

standard inputoutput

standard outputFurik loves writing all sorts of problems, especially such that he can't solve himself. You've got one of his problems, the one Furik gave to Rubik. And Rubik asks you to solve it.

There is integer *n* and array *a*, consisting of ten integers, indexed by numbers from 0 to 9. Your task is to count the number of positive integers with the following properties:

- the number's length does not exceed
*n*; - the number doesn't have leading zeroes;
- digit
*i*(0 ≤*i*≤ 9) occurs in the number at least*a*[*i*] times.

Input

The first line contains integer *n* (1 ≤ *n* ≤ 100). The next line contains 10 integers *a*[0], *a*[1], ..., *a*[9] (0 ≤ *a*[*i*] ≤ 100) — elements of array *a*. The numbers are separated by spaces.

Output

On a single line print the remainder of dividing the answer to the problem by 1000000007 (10^{9} + 7).

Examples

Input

1

0 0 0 0 0 0 0 0 0 1

Output

1

Input

2

1 1 0 0 0 0 0 0 0 0

Output

1

Input

3

1 1 0 0 0 0 0 0 0 0

Output

36

Note

In the first sample number 9 meets the requirements.

In the second sample number 10 meets the requirements.

In the third sample numbers 10, 110, 210, 120, 103 meet the requirements. There are other suitable numbers, 36 in total.

Codeforces (c) Copyright 2010-2021 Mike Mirzayanov

The only programming contests Web 2.0 platform

Server time: Apr/18/2021 00:32:19 (j2).

Desktop version, switch to mobile version.

Supported by

User lists

Name |
---|