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  1. #include <stdio.h>
  2.  
  3. int main()
  4. {
  5. int a;
  6. printf("input numbet=");
  7. scanf("%d",&a);
  8. if(a>=20){
  9. if(a<=30){
  10. printf("Good");
  11. }
  12. }
  13.  
  14. return 0;
  15. }
Success #stdin #stdout 0.01s 5276KB
stdin
Standard input is empty
stdout
input numbet=