[#include [HTML_REMOVED]

using namespace std;
const int N=1e5+10;
int mul(int A[],int asize,in
}
int index=i-1;
t/=10;
}
while(t){
A[i]=t%10;t b){
int t=0,i=0;
for(i=0;i[HTML_REMOVED]0&&!A[index])index–;
return index+1;
}
int main(int argc, char** argv) {
int n;
cin>>n;
int A[N];
A[0]=1;
int asize=1;
for(int i=1;i<=n;i){
asize=mul(A,asize,i);
}
for(int i=asize-1;i>=0;i–)printf(“%d”,A[i]);
puts(“”);

return 0;

}