Help me in solving SESO06 problem

help
,
1

My issue

i was given correct output but indicate wrong please respond

My code

#include<stdio.h>
#include<string.h>
int main()
{
    char sl[1000],cl;
    int k;
    scanf("%s %c %d",sl,&cl,&k);
    int count=0;
    for(int i=0;i<strlen(sl);i++)
    {
        if (sl[i]==cl)
        {
            count++;
            if(count==k)
            {
                printf("%d\n",i);
                return 0;
            }
        }
    }
    printf("-l\n");
    return 0;
}

Learning course: Data Structures & Algorithms using C
Problem Link: https://www.codechef.com/learn/course/city-dsa-c/CITYDSC04/problems/SESO06