- #include <stdio.h> 
-   
- int main(){   
-  int marks; 
-  printf(" please enter number: "); 
-  marks >90 ? printf("your grade is A")
- :(- marks >=75)? printf("your grade is B")
 
- :(- marks >=50)? printf("yor grade is c")
 
- :(- marks >=30)? printf("your grade is D")
 
- :printf("you fail the exame"); 
-   return 0;  
- } 
-   
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