void main()
             {
                int a;
                clrscr();
                printf("enter any number=");
                scanf("%d",&a);
                     
                     if(a>0)
                        {
                          printf("given number is positive");
                          
                              if(a%2==0)

                               {
                                 printf("given number is even");

                               }
                              else
                          
                               {
                                printf("given number is odd");
                               }
                       }
                        else
                         {
                           printf("given number is negative");
                         }
                   getch();
           }

         output:
              enter any number=25
               given number is positive
               given number is odd