/*#include <stdio.h>
int main()
{
int a;
scanf("%d",&a);
printf("%d",!a);
return 0;
}
*/
/*#include <stdio.h>
int main()
{
int a,b;
scanf("%d %d",&a,&b);
printf("%d",a&&b);
return 0;
}
*/
/*#include <stdio.h>
int main()
{
int a,b;
scanf("%d %d",&a,&b);
printf("%d",a|b);
return 0;
}
*/
/*#include <stdio.h>
int main()
{
int a;
scanf("%d",&a);
printf("%d",~a);
return 0;
}
*/
/*#include <stdio.h>
int main()
{
int a,b;
scanf("%d %d",&a,&b);
printf("%d",a&b);
return 0;
}
*/
/*#include <stdio.h>
int main()
{
int a,b;
scanf("%d %d",&a,&b);
printf("%d",a|b);
return 0;
}
*/
/*#include <stdio.h>
int main()
{
int a,b;
scanf("%d %d",&a,&b);
printf("%d",a^b);
return 0;
}
*/
/*#include <stdio.h>
int main()
{
int a,b;
scanf("%d %d",&a,&b);
printf("%d",a>b?a:b);
return 0;
}
*/
/*#include <stdio.h>
int main()
{
int a,b,c;
scanf("%d %d %d",&a,&b,&c);
printf("%d",(a>b?b:a)>c?c:(a>b?b:a));
return 0;
}
*/
/*
#include<stdio.h>
int main() {
int n, m;
scanf("%d", &n);
if(n>10) {
printf("HELLO");
}
else if(n>0) {
// 1~ 10
printf("%d", n);
}
else if(n>-10) {
}
else if(n>-20) {
}
else {
if(n%2==0) {
}
else {
}
printf("WORLD");
}
}
*/
/*#include <stdio.h>
int main()
{
int a;
scanf("%d",&a);
if(a<10)
{
printf("small");
}
return 0;
}
*/
/*#include <stdio.h>
int main()
{
int a;
scanf("%d",&a);
if(a<10)
{
printf("small");
}
else{printf("big");}
return 0;
}
*/
/*#include <stdio.h>
int main()
{
int a,b,c
scanf("%d %d %d",&a,&b,&c);
if(a==b&&b==c)
{
printf("정삼각형")
}
else if(a==b||b==c)
}
*/