Reverse string program in c language

/*print reverse string*/

#include<stdio.h>   //Header file
#include<string.h>

void  main()
    {
       char name[20];  //initialize variable
       int len,a;
      printf("enter your name");
     scanf("%s",&name);     //Get string in run time
    printf("your name is = %s",name);
    printf("\n.......................\n");
   len=strlen(name);   //find the length of stirng
   a=len;
  printf("reverse of your name is=");
   for(len=a;len>=0;len--)  //logic to print reverse stringa
     {
        printf("%c",name[len]);
     }  //End of for loop
}//End of main