Snuke loves working out. He is now exercising N times.
Before he starts exercising, his power is 1. After he exercises for the i-th time, his power gets multiplied by i.
Find Snuke's power after he exercises N times. Since the answer can be extremely large, print the answer modulo 10^{9}+7.

-----Constraints-----
- 1 ≤ N ≤ 10^{5}

-----Input-----
The input is given from Standard Input in the following format:
N

-----Output-----
Print the answer modulo 10^{9}+7.

-----Sample Input-----
3

-----Sample Output-----
6

• After Snuke exercises for the first time, his power gets multiplied by 1 and becomes 1.
• After Snuke exercises for the second time, his power gets multiplied by 2 and becomes 2.
• After Snuke exercises for the third time, his power gets multiplied by 3 and becomes 6.

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