#include "stdio.h"#include "conio.h"
main(){ int n,i,sum,p; p=1;sum=0; for(n=1;n<=5;n++) {for(i=1;i<=n;i++) p=p*i;} sum=sum+p; printf("1!+2!+3!+4!+5!=%d\n",sum);
getch();}