#include<stdio.h>
int main()
{int x,a[200]={0},i,j,k,m,n,b,temp;
while(n--)
a[0]=1;
m=1;
for(i=2;i<=b;i++)
{temp=0;
for(j=0;j<m;j++)
{x=a[j]*i+temp;
a[j]=x%10;
temp=x/10;
}
while(temp!=0)
{a[m++]=temp%10;
temp=temp/10;
}
}
for(k=m-1;k>=0;k--)
}
return 0;
}
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