#include <iostream.h>
#include <math.h>

double max(double x,double y);

void main()
{
double a,b,c;
cout<<"input two numbers:\n";
cin>>a>>b;
c=max(a,b);
count<<"the squart of maximum="<<sqrt(c);
}

double max (double x, double y)
{
if(x>y)
return x;
else
return y;
}