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  1. import java.util.Scanner;
  2.  
  3. class Main {
  4. public static void main(String[] args) {
  5. Scanner scanner = new Scanner(System.in);
  6. int a = scanner.nextInt();
  7. int b = scanner.nextInt();
  8. int c = scanner.nextInt();
  9.  
  10. int result = (a + b + c) / 2 + (a + b + c) % 2;
  11.  
  12. System.out.println(result);
  13. }
  14. }
  15.  
Success #stdin #stdout 0.1s 35388KB
stdin
20
31
32
stdout
42