#include <cstdio>
#include <algorithm>
#define N 1000010
using namespace std;

int n,m,fa[N];
bool gg[N];

int Find(int x){return x==fa[x]?x:fa[x]=Find(fa[x]);}
namespace Lt{
	int l[N],r[N],v[N],d[N];
	int merge(int x,int y){
		if(!x||!y) return x+y;
		if(v[x]>v[y]) swap(x,y);
		r[x]=merge(r[x],y);
		if(d[r[x]]>d[l[x]]) swap(l[x],r[x]);
		d[x]=d[r[x]]+1;
		return x;
	}
	inline int tp(int x){return v[x];}
	inline void pop(int x){
		fa[x]=merge(l[x],r[x]);
		fa[fa[x]]=fa[x];
	}
}

inline int read(){
    int x=0,f=1;char ch=getchar();
    while(ch<‘0‘||ch>‘9‘){if(ch==‘-‘)f=-1;ch=getchar();}
    while(ch>=‘0‘&&ch<=‘9‘){x=x*10+ch-‘0‘;ch=getchar();}
    return x*f;
}

int main(){
	n=read();
	for(int i=1;i<=n;++i) Lt::v[i]=read(),fa[i]=i;
	m=read();
	while(m--){
		char ch;for(ch=getchar();ch!=‘M‘&&ch!=‘K‘;ch=getchar());
		if(ch==‘K‘){
			int x=read(),p;
			if(gg[x]) puts("0");
			else{
				gg[p=Find(x)]=1;
				printf("%d\n",Lt::v[p]);
				Lt::pop(p);
			}
		}else{
			int x=read(),y=read();
			if(gg[x]||gg[y]) continue;
			int px=Find(x),py=Find(y);
			if(px!=py) fa[px]=fa[py]=Lt::merge(px,py);
		}
	}
	return 0;
}