View Code of Problem 3832

#include<iostream>
#include<cstring>
#include<math.h>
#include<algorithm>
using namespace std;

int main(){
	char ch[100010],ch2[10010];
	while(scanf("%s %s",ch,ch2)!=EOF){
		char* i=strstr(ch,ch2);
		if(i==0)
			printf("-1\n");
		else {
			
			printf("%d\n",i-ch+1);
		}
	}
	return 0;
}