#include<bits/stdc++.h>

using namespace std;

int main()

{

int a=0,b=0,c=0,n=0;

cin>>a>>b; 

if(a==b)

{
	
	cout<<24;
	
}

else if(a<b)

{
	
	c=b-a;
	
	cout<<c; 
	
}

else if(a>b)

{
	
	c=24-a+b;
	
	cout<<c;
	
}

return 0;

}