#include<stdio.h>

void main(){
	int i,g,b;
	
	for(i=100;i<=999;i++){
		g=i%10;
		b=i/100;
		if(g==b){
			printf("%d\n",i);
		}
	}
} 


/**************************************************************
	Problem: 1701
	User: admin
	Language: C
	Result: Accepted
	Time:8 ms
	Memory:1036 kb
****************************************************************/