/*#include <stdio.h>
#include <stdlib.h>
int main()
{
printf("Hello world!\n");
return 0;
}
*/
/*#include <stdio.h>
int main()
{
float a,b;
scanf("%f %f",&a,&b);
printf("%.2f",a*b);
return 0;
}
*/
/*#include <stdio.h>
int main()
{
int a,b;
scanf("%d %d",&a,&b);
printf("%.1f",(float)a*b/2);
return 0;
}
*/
/*#include <stdio.h>
int main()
{
int a;
scanf("%d",&a);
printf("%.3f",(float)9/5*a+32);
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);
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)&&(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;
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?b:a);
return 0;
}
*/
/*#include <stdio.h>
int main()
{
int a,b,c;
scanf("%d %d %d",&a,&b,&c);
printf("%d",(a<b?a:b)>c?c:(a<b?a:b));
return 0;
}
*/
/*#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("big");
}
else
{
printf("small");
}
return 0;
}
*/
/*#include<stdio.h>
int main()
{
int a;
scanf("%d",&a);
if(a%2==0)
{printf("even");
}
else
{
printf("odd");
}
return 0;
}
*/
/*#include<stdio.h>
int main()
{
float a;
scanf("%f",&a);
if(50<=a&&a<=60)
{printf("win");
}
else
{
printf("lose");
}
return 0;
}
*/
/*#include<stdio.h>
int main()
{
int a,b,c;
scanf("%d %d %d",&a,&b,&c);
if((a-b+c)%10==0)
{
printf("대박");
}
else
{
printf("그럭저럭");
}
return 0;
}
*/
/*#include<stdio.h>
int main()
{
int a,b,c;
scanf("%d %d %d",&a,&b,&c);
if(a<=170)
{
printf("CRASH");
}
else if(b<=170)
{
printf("CRASH");
}
else if(c<=170)
{
printf("CRASH");
}
else
{
printf("PASS");
}
return 0;
}
*/
/*#include<stdio.h>
int main()
{
int a,b;
scanf("%d %d",&a,&b);
if(a%5==0)
{
printf("%d",(90-a)/5+b);
}
else
{
printf("%d",(90-a)/5+b+1);
}
return 0;
}
*/
#include <stdio.h>
int main()
{
int a,b;
scanf("%d %d",&a,&b);
if()
}