int testcases;
scanf("%dn",&testcases);
for(int a=0; a<testcases; a++) {
    int ch; //and some other stuff
    scanf("%dn",&ch);
    for(int b=0; b<ch; b++) {
        //mostly irrelevant, but getline is called
    }
    string such,findi;
    getline(cin,such);
    for(int b=0; b<such.size(); b++) {
        //appends chars to findi, irrelevant
    }
    getline(cin,such);
    int occur=findi.find(such);
    printf("%dn",occur);
}

3
3
//irrelevant line 1
//irrelevant line 2
//irrelevant line 3
abcd
e
0


0
a
aaa