3612.Yaroslav and Arrangements

Time Limit: 1s Memory Limit: 256MB

Yaroslav calls an array of r integers a1,a2,...,ar good, if it meets the following conditions: |a1-a2|=1,|a2-a3|=1,...,|ar-1-ar|=1,|ar-a1|=1, at that 3612_1.png.

An array of integers b1,b2,...,br is called great, if it meets the following conditions:
The elements in it do not decrease (bi \le bi+1). If the inequalities 1 \le r \le n and 1 \le bi \le m hold. If we can rearrange its elements and get at least one and at most k distinct good arrays.
Yaroslav has three integers n,m,k. He needs to count the number of distinct great arrays. Help Yaroslav! As the answer may be rather large, print the remainder after dividing it by 1000000007 (109+7).

Two arrays are considered distinct if there is a position in which they have distinct numbers.

Input Format(From the terminal/stdin)

The single line contains three integers n, m, k (1 \le n,m,k \le 100).

Output Format(To the terminal/stdout)

In a single line print the remainder after dividing the answer to the problem by number 1000000007 (109+7).

Sample Input 1

Copy
1 1 1
 · · \n

Sample Output 1

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0
 \n

Sample Input 2

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3 3 3
 · · \n

Sample Output 2

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2
 \n

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