class Main {
public static void main(String[] args) {
int a= FindTest("de","abcdefg");
System.out.print(a);
}
static int FindTest(String key,String test){
int a=-1;
int b=key.length();
int c=test.length();
if(b==0||c==0)
return i;
for(int i=0;i<c-b;i++){
int j=0;
for(j;j<b;j++)
{
if(test[i]!=key[j])
break;
}
if(j==b){
a=i;
break;
}
}
return a;
}
}