public class A {
	
	 double a = 2.3;
	 double b = 1.9;

	public void main(String[] args) {
		cheng();

	}
	
	public void cheng(){
		
		for(int i = 0;i < 36;i++){
			for(int j = 0;j < 44;j++){
				if(2.3 * i + 1.9 * j == 82.3 && i < j)
					System.out.print(i);
			}
		}
	}
}