#include<bits/stdc++.h>
using namespace std;
double a,b,c;
int main(){
	cin>>a>>b>>c;
	double maxn=max({a,b,c});
	cout<<maxn;
	
	return 0;
}

#include<bits/stdc++.h> using namespace std;

int main() { double a,b,c; cin>>a>>b>>c; double maxn=max({a,b,c}); cout<<maxn;

return 0;

}