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  1. #include <stdio.h>
  2.  
  3. int main(void) {
  4. int a,b;
  5. printf ("a=");
  6. scanf ("%d",&a);
  7. b=a+2 ;
  8. printf("%d",b);
  9. return 0;
  10. }
  11.  
Success #stdin #stdout 0s 5460KB
stdin
2
stdout
a=4