#include<bits/stdc++.h>
using namespace std;
int main(){
    int n,q;
    cin>>n>>q;
    int arr[n];
    for(int i=0;i<n;i++){
        cin>>arr[i];
    }
    for(int i=1;i<=q;i++){
        char ch;
        int ind1,ind2,max=0;ansind=0;
        cin>>ch>>ind1>>ind2;
        if(ch=='M'){
            for(int j=ind1;j<=ind2;j++){
                int count=0;
                for(int k=j+1;k<=ind2;k++){
                    if(arr[j]==arr[k]){
                        count++;
                    }
                }
                if(count>max || (count==max && arr[j]<arr[ansind])){
                    max=count;
                    ansind=j;
                }
            }
            cout<<arr[ansind]<<endl;
        }else if(ch=='U'){
            arr[ind1]=ind2;
        }
    }
    return 0;
}