#include <iostream>
#include <vector>
#include <bits/stdc++.h>


using namespace std;
using ll = long long;

const ll mod = 1000'000'007;

struct Group{
    int eval;
    int odds = 0;
    int evens = 0;
};

int main() {
    cin.tie(0)->sync_with_stdio(0);
    int n, m;
    cin >> n >> m;
    vector<int> a(n);
    vector<Group> g(n);
    int groupNum = 0;
    vector<int> group(n);
    for(int i = 0; i < n - 1; i++){
        int A;
        cin >> A;
        a[i] = A;
        group[i] = groupNum;
        if(A&1) g[groupNum].odds++;
        else g[groupNum].evens++;
        char c;
        cin >> c;
        if(c == '+' || c == '-'){
            groupNum++;
        }
    }
    int A;
    cin >> A;
    a[n-1] = A;
    group[n-1] = groupNum;
    if(A&1) g[groupNum].odds++;
    else g[groupNum].evens++;


    int oddGroups = 0;
    int evenGroups = 0;

    for(int i = 0; i <= groupNum; i++){
        Group & x = g[i];
        if(x.evens == 0){
            x.eval = 1;
            oddGroups++;
        }
        else{
            x.eval = 2;
            evenGroups++;
        }
    }
    int value = (oddGroups + evenGroups*2)%2;
    if(value) cout  << "odd" << endl;
    else cout << "even" << endl;

    while(m--){
        int x, y;
        cin >> x >> y;
        x--;
        if((a[x]^y)&1){ //flip
            a[x] = y;
            Group & gr = g[group[x]];
            if(y&1){
                gr.evens--;
                gr.odds++;
                if(gr.evens == 0){
                    gr.eval = 1;
                    oddGroups++;
                    evenGroups--;
                }
            }
            else {
                gr.evens++;
                gr.odds--;
                if(gr.odds == 0){
                    gr.eval = 2;
                    evenGroups++;
                    oddGroups--;
                }
            }

            value = (oddGroups + evenGroups*2)%2;
        }
        if(value) cout  << "odd" << endl;
        else cout << "even" << endl;

    }




}