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#include<bits/stdc++.h>
using namespace std;
ifstream in("stramosi.in");
ofstream out("stramosi.out");
int n,m;
int v[250001];
void citire()
{
int i;
in>>n>>m;
for( i=1;i<=n;i+=2)
in>>v[i];
if(i<n)
in>>v[i+1];
}
void dfs(int i,int p)
{
if(i!=0 &&p!=0)
dfs(--i,v[p]);
else
out<<p<<'\n';
}
int main()
{
citire();
int j,k,i;
for( i=1;i<=m;i+=2)
{
in>>j>>k;
if(k>n)
k=k%n;
dfs(--k,v[j]);
in>>j>>k;
dfs(--k,v[j]);
}
if(i<m)
{
in>>j>>k;
if(k>n)
k=k%n;
dfs(--k,v[j]);
}
return 0;
}