C++ :

#include<bits/stdc++.h>
using namespace std;
int n,a[15];
int main(){
    for(int i=1;i<=8;i++)
        cin>>a[i];
    cin>>n;
    for(int i=1;i<=8;i++)
    {
        if(a[i]==n)
        {
            cout<<i<<endl;
            return 0;
        }
    }
    cout<<0;
}

Pascal :

var
 s,n:string;
 a:array[1..10000] of string;
 i,j,k,b,c,f:integer;
 begin
  readln(s);
  readln(n); k:=1;b:=0;c:=0;f:=0;
  i:=length(s);
  for j:=1 to i do
  if s[j]=' ' then begin
                   c:=c+1;
                   b:=j;
                   a[c]:=copy(s,k,b-j+1);
                   k:=j+1;
                   end;
                   a[c+1]:=copy(s,k,i-j+2); k:=1;
 while f=0 do
 if a[k]<>n then k:=k+1
            else     begin
                     write(k);
                     f:=1;
                     end;
  end.

Python :

# coding=utf-8
lst = list(map(int,input().split()))
n = int(input())
print(4)