C :

#include<stdio.h> 
int jieCheng(int x){
	int i,s=1;
	for(i = 1;i <= x;i++){
		s *= i;
	}
	return s;
}

int jieChengHe(int n){
	int i,c=0;
	for(i = 1;i <= n;i++){
		c+=jieCheng(i);
	}
	return c;	
}

int main(){ 
	int n;
	scanf("%d",&n);
	printf("%d",jieChengHe(n));
	return 0;
} 

C++ :

#include <iostream>

using namespace std;

int main(){
	int i,n,j,c=1,x=0;
	cin>>n;
	for(i=1;i<=n;i++){
		for(j=1;j<=i;j++){
			c=c*j;
		}x=x+c;
		c=1;
	}cout<<x<<endl;
}

Pascal :

var n,s,i,t,j:longint;
begin
  read(n);
  s:=0;
  for i:=1 to n do
  begin
   t := 1;
   for j := 1 to i do
   begin
      t := t * j;
   end;
   s := s + t;
  end;
  writeln(s);
end.

Java :

import java.util.Scanner;
public class Main {
	public static void main(String[] args) {
		Scanner scanner=new Scanner(System.in);
		int n=scanner.nextInt();
		int sum=0;
		for(int i=1;i<=n;i++){
			int a=1;
			for(int j=1;j<=i;j++){
				a=a*j;
			}
			sum=sum+a;
		}
		System.out.println(sum);
	}
}

Python :

n =  int(input());
s = 0;
for i in range(1, n + 1):
    k = 1;
    for j in range(1,i+1):
        k  *= j;
    s = s + k;

print(s);