/*
#include <stdio.h>
void myswap(int *a, int *b){
int x=*a;
if(*a>*b){
*a=*b;
*b=x;
}
}
main()
{
int a, b;
scanf("%d%d", &a, &b);
myswap(&a, &b);
printf("%d %d", a, b);
}
*/
/*
#include<Stdio.h>
int main() {
int x = 10;
int *pX = &x;
printf("invite value is %d\n", x);
printf("Address is %d\n", &x);
printf("pointer Data is %d\n", pX);
printf("pointer Value is %d\n", *pX);
*pX = 1000;
printf("again Data is %d\n", x);
}
*/
/*
#include<stdio.h>
void rec(int n) {
if(n==0) return;
rec(n-1);
printf("%d\n", n);
}
int main() {
int n;
scanf("%d", &n);
rec(n);
}
*/
/*
#include <stdio.h>
void f(int n){
if(n==0)
return;
printf("%d\n", n);
f(n-1);
}
int main(){
int n;
scanf("%d", &n);
f(n);
}
*/
/*
#include <stdio.h>
void f(int a, int b){
if(a>b)
return;
if(a%2==1)
printf("%d ", a);
f(++a,b);
}
int main()
{
int a, b;
scanf("%d %d", &a, &b);
f(a,b);
return 0;
}
*/
/*
#include <stdio.h>
int n,i=0;
void f(int a){
if(a<1)
return;
i+=a;
f(a-1);
}
int main()
{
scanf("%d", &n);
f(n);
printf("%d", i);
return 0;
}
*/
/*
#include <stdio.h>
int f(int a){
if(a==1)
return 1;
return a * f(a-1);
}
int main()
{
int n;
scanf("%d", &n);
printf("%d", f(n));
return 0;
}
*/
/*
#include <stdio.h>
int n;
int f(int a){
if(a==1||a==2)
return 1;
return f(a-1)+f(a-2);
}
int main()
{
scanf("%d", &n);
printf("%d", f(n));
return 0;
}
*/
#include <stdio.h>
int f(int a){
if(a%2==1)
}
int main()
{
int n;
scanf("%d", &n);
}