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  1. #include<stdio.h>
  2. int main()
  3. {
  4. int a,b,n=1;
  5. scanf("%d",&b);
  6. for(a=1;a<=b;a++)
  7. n=n*a;
  8. printf("%d",n);
  9. return 0;
  10. }
Success #stdin #stdout 0s 5324KB
stdin
8
stdout
40320