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  1. import java.util.*;
  2.  
  3. class Main
  4. {
  5. 	public static void main (String[] args) throws java.lang.Exception
  6. 	{
  7. 		Scanner scan = new Scanner(System.in);
  8. 		int a = scan.nextInt();
  9. 		int b = scan.nextInt();
  10.  
  11. 		System.out.print(a*b-a-b);
  12. 	}
  13. }
Success #stdin #stdout 0.08s 29264KB
comments (?)
stdin 
2	1
stdout 
-1
https://ideone.com/HRwUjS
KM194
language:
Java (HotSpot 12)
created:
7 years ago
visibility:
public

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