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integer p(int i)
{
integer hugeResult_fenmu,hugeResult_fenzi,h1,h2,h3,hRe;
hugeResult_fenmu.Combination(100000,200).Pow(2);
hugeResult_fenzi=h1.Combination(100000,i)*h2.Combination(100000-i,2*(200-i))\
*h3.Combination(2*(200-i),200-i);
hRe=hugeResult_fenzi/hugeResult_fenmu;
return hRe;
}
def compute():
data = raw_input()
print data
if __name__ == "__main__":
compute()