class All_220
{
	public static void main( String[] args){
		for( int n=1; n<9999; n++){
			int s = divsum(n);
			if( n<s && divsum(s)==n ) 
				System.out.println(n +"," + s);
		}
	}
	public static int divsum( int n ){
		int s = 0;
		for( int i=1; i<n; i++ )
			if( n%i == 0 ) s+=i;
		return s;
	}
}