#include
     
      double fact_s(int n);int main(void){    int i,n;    printf("Input n:");    scanf("%d",&n);    for(i=1;i<=n;i++)        printf("%3d!=%.0f\n",i,fact_s(i));    return 0;}double fact_s(int n){    static double f=1;    f=f*n;    return(f);}