#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();
}