Write a program in that display a substring from a given string knowing its length and its starting position.

Example
Enter the string : my name is toto
Enter the position : 4
Enter the length of substring : 6
The substring retrieved from the string beginning from position 4 of length 8 is : "name i"

#include <stdio.h>
#define SIZE 100
void main() 
{
	char str[SIZE], substr[SIZE];
	int pos, length, count;
 
	printf("Enter the string : ");
	gets(str);
 
   	printf("Enter the position :");
   	scanf("%d", &pos);
   
   	printf("Enter the length of substring :");
  	scanf("%d", &length);
 
	count=0;
   	while (count < length && str[pos+count-1]!='\0') 
   	{
      		substr[count] = str[pos+count-1];
      		count++;
   	}
   	substr[count] = '\0';
 
   	printf("The substring retrieved from the string beginning from position %d of length %d is : \"%s\"\n\n", pos, length, substr);
 
}