#include <algorithm>
#include <cstdio>
#include <cmath>
using namespace std;
const int NULA = 0;

typedef float moj;

int main( void ) {
  for( int i = 0; i < 3; ++i ) {
    int a, b, c;
    scanf( "%d%d%d", &a, &b, &c );
    if( a * a == b * b + c * c ||
        b * b == a * a + c * c ||
        c * c == a * a + b * b )
      printf( "DA\n" );
    else 
      printf( "NE\n" );
  }
  
  return NULA;
}