C program to Reverse a String without using strrev() and Print Directly

/* C program to Reverse a String without using strrev() and Print Directly*/
 
#include <stdio.h>
#include <string.h>
 
void main()
{
  	char Str[100];
  	int i, len;
 
  	printf("Enter a String: ");
  	gets(Str);
  	
  	len = strlen(Str);
  	
 	printf("Reverse String is = "); 
  	for (i = len - 1; i >= 0; i--)
  	{
  		printf("%c", Str[i]);
  	}

}

Enter a String: Tutorialsrack
Reverse String is = kcarslairotuT
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Process exited after 4.861 seconds with return value 84
Press any key to continue . . .