/*
#include <stdio.h>
#include <stdlib.h>
int main()
{
printf("Hello world!\n");
return 0;
}
#include<stdio.h>
int main()
{
printf("!@#$%^&*(\\\'\"<>?:;");
return 0;
}
#include<stdio.h>
int main()
{
int a, b;
scanf("%d %d", &a, &b);
printf("%d + %d = %d", a, b, a+b);
return 0;
}
#include<stdio.h>
int main()
{
int a;
scanf("%d",&a);
if(a%2==0)
{
printf("%d is even",a);
}
else
{
printf("%d is odd",a);
}
return 0;
}
*/
#include<stdio.h>
int main()
{
int a, b;
scanf("%d %d", &a, &b);
if()
}