#include<iostream.h>
#include<conio.h>
	main(){


int a,b,n,f_nu,s_nu,th_nu,fo_nu,f,s,t,fr;
float p,m1,m2,m3,m4;
	cout<<"enter value"<<endl;
	cin>>n;
	if(n>10000&&n<999);
	else
   if(n>999&&n<=9999)
	{f_nu=n/1000;
	s_nu=n%1000/100;
	th_nu=n%1000%100/10;
	fo_nu=n%1000%100%10;
	f=f_nu*7;
	s=s_nu*7;
	t=th_nu*7;
	fr=fo_nu*7;
	m1=(float)f/10;
	m2=(float)s/10;
	m3=(float)t/10;
	m4=(float)fr/10;
	
	a=m3;
	m3=m1;
	m1=a;
	b=m4;
	m4=m2;
	m2=b;
	cout<<"code is"<<(int)m1<<(int)m2<<(int)m3<<(int)m4<<endl;
	}
	int x;
	cout<<" enter number of your choose   1=get the number before encryption\n2=Exit the program\n";
	cin>>x;
	switch(x){
		case 1 :
		{
	m1=(float)f/7;
	m2=(float)s/7;
	m3=(float)t/7;
	m4=(float)fr/7;

	cout<<"number is = "<<m1<<m2<<m3<<m4<<endl;


		break;}
	case 2:
	cout<<"thanx for using my program\n";
	break;}

getch();}