#include<stdio.h>
int main()
{
    int a=100,b=10,c=20,i;
    
    if(a%b==0)
    {
        for(i=1;i<=a/b-1;i++)
        {
               if(((a-b*i)%c==0)&&((a-b*i)>=c))
               {
                       printf("%d %d\n",i,(a-b*i)/c);
               }
        }
    }
    if(a%b!=0)
    {
        for(i=1;i<=a/b;i++)
        {
               if(((a-b*i)%c==0)&&((a-b*i)>=c))
               {
                   printf("%d %d\n",i,(a-b*i)/c);
               }
        }
    }
    return 0;
}
/**************************************************************
	Problem: 1792
	User: admin
	Language: C
	Result: Accepted
	Time:5 ms
	Memory:1036 kb
****************************************************************/