/*   @JUDGE_ID:   1705PZ   138   C */
#include <stdio.h>

int main(){
int count = 0;
double m = 6,n = 8;
double a = 15,b = 15;
while(count != 10){
	if(a == b){
		printf("%10.0f%10.0f\n",m,n);
		n++;
		b += n;
		count++;
		}
	else if(a > b){
		n++;
		b += n;
		}
	else if(b > a){
		a += m;
		m++;
		b -= m;
		}
	}
return 0;
}
@END_OF_SOURCE_CODE