int a = sc.nextInt();
  int b = sc.nextInt();
  int c = sc.nextInt();
  int max = a;
  if( b > max ) {
     max=b;
  }
  if( c > max ) {
     max=c;
  }
  System.out.printf( "maximum z čísel %d, %d, %d je %d%n", a, b, c, max );