Characters – Factors of Length

The program must accept a string S as the input. The program must calculate the length of string S as L. Then the program must print the characters which are present at the positions of the factors of L in ascending order as the output.
Boundary Condition(s):
1 <= Length of S <= 100
Input Format:
The first line contains the string S.
Output Format:
The first line contains the characters based on the above conditions.
Example Input/Output 1:
Input:
Letuscrack
Output:
Ltk
Explanation:
The length of the string “Letuscrack” is 10.
The factors of 10 are 1, 2, 5, and 10.
So the characters present at the positions 1, 2, 5, and 10 are printed.
Hence the output is Ltk.
Example Input/Output 2:
Input:
google
Output:
gooe

#include<stdio.h>
#include <stdlib.h>
int main()
{
    char s[100];
    int length;
    scanf("%s",s);
    length=strlen(s);
    for(int i=1;i<=length;i++)
    {
        if(length%i==0)
        {
            printf("%c",s[i-1]);
        }
    }
    return 0;
}