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  1. #include <stdio.h>
  2.  
  3. int main(void) {
  4. //your code goes here
  5. int a,b;
  6. scanf("%d%d",&a,&b);
  7. printf("a = %d\n",a);
  8. printf("-a = %d\n",-a);
  9. printf("a + b=%d\n",a + b);
  10. printf("a - b=%d",a - b);
  11. return 0;
  12. }
  13.  
Success #stdin #stdout 0.01s 5320KB
stdin
999  666
stdout
a = 999
-a = -999
a + b=1665
a - b=333