/*
#include <stdio.h>
#include <stdlib.h>
int main()
{
printf("Hello world!\n");
return 0;
}
*/
/*
#include <stdio.h>
struct node
{
int num;
struct node* link;
};
int main()
{
struct node a, b;
a.num = 0;
a.link = &b;
b.num = 1;
printf("%d\n",a.num);
printf("%d\n",a.link->num);
return 0;
}
*/
/*
#include <stdio.h>
int main()
{
int m, n, cnt=0, min;
scanf("%d %d",&m,&n);
int sum = 0;
min=n;
for(int i = m; i <= n; i++)
{
cnt = 0;
for(int j = 1; j <= i; j++)
{
if(i % j == 0)
{
cnt++;
}
}
if(cnt==2)
{
sum += i;
if(min>i)
{
min=i;
}
}
}
if(sum == 0)
{
printf("-1\n");
}
else
{
printf("%d\n%d",sum,min);
}
}
*/
/*
#include <stdio.h>
int main()
{
int i,j,k,tmp,m, n, sum =0;
scanf("%d %d",&m,&n);
i=m;
for(j = 1; ; j++)
{
if(j*j>=i)
break;
}
tmp = j*j;
for(k = j; ; k++)
{
if(k*k>n)
{
break;
}
else
{
sum+=k*k;
}
}
printf("%d\n%d",sum,tmp);
return 0;
}
*/
/*
#include <stdio.h>
int main()
{
int h, m, t;
scanf("%d %d %d",&h,&m,&t);
if(m + t <= 59)
{
m = m + t;
}
else
{
m=m+t;
if(m>=60)
{
h = h + m/60 ;
m = m%60;
}
if(h>=24)
{
h=h-24;
}
}
printf("%d %d",h,m);
return 0;
}
*/
/*
#include <stdio.h>
int main()
{
int i,j,k,tmp,m, n, sum =0;
scanf("%d %d",&m,&n);
i=m;
for(j = 1; ; j++)
{
if(j*j>=i)
break;
}
tmp = j*j;
for(k = j; ; k++)
{
if(k*k>n)
{
break;
}
else
{
sum+=k*k;
}
}
printf("%d\n%d",sum,tmp);
return 0;
}
*/
/*
#include <stdio.h>
int main()
{
int i, j, m, n, k, sum=0, min;
scanf("%d %d",&m,&n);
i = m;
for(j = 1; ; j++)
{
if(j * j >= i)
{
break;
}
}
min = j*j;
for(k = j; ; k++)
{
if(k*k>n)
{
break;
}
else
{
sum+=k*k;
}
}
printf("%d\n%d",sum,min);
return 0;
}
*/
#include <stdio.h>
struct node
{
int num;
struct node* link;
};
int main()
{
struct node a, b;
a.num = 0;
a.link = &b;
b.num = 1;
printf("%d\n",a.num);
printf("%d\n",a.link->num);
return 0;
}