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# Dice Rolls

Problem Description

You rolled a dice K times and got a sum of A after summing all the values you got after a roll.
Find the number of ways you could have got a sum of A after rolling K times, since this value can be very large return modulo 109+7.

Problem Constraints
1 <= A <= 106

Input Format
Given an integer A.

Output Format
Return and integer.

Example Input
Input 1:
```A = 2
```

Input 2:

```A = 3
```

Example Output
Output 1:
`2`

Output 2:

`4`

Example Explanation
Explanation 1:
```Ways to get sum 2 are {1, 1} {2}.
```

Explanation 2:

```Ways to get sum 3 are {1, 1, 1}, {1, 2}, {2, 1}, {3}
```

NOTE: You only need to implement the given function. Do not read input, instead use the arguments to the function. Do not print the output, instead return values as specified. Still have a question? Checkout Sample Codes for more details.
Hints
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## Discussion

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