// 17.4 Find the maximum of two numbers without using comparison operator or if-else statement.

 // Use bit operation instead. But this solution applies to integer only.

 #include <cstdio>

 using namespace std;

 int mymax(int x, int y)

 {

     static const unsigned mask = 0x80000000;

     return (x & mask) ^ (y & mask) ? ((x & mask) ? y : x) : ((x - y & mask) ? y : x);

 }

 int main()

 {

     int x, y;

     while (scanf("%d%d", &x, &y) == ) {

         printf("%d\n", mymax(x, y));

     }

     return ;

 }