#include <iostream>
#include <vector>

using namespace std;

int main() {
    ios_base::sync_with_stdio(0);
    cin.tie (0);

    long long noIntegers, noQueries;
    cin >>noIntegers >> noQueries;

    vector<int> oddNumberCounts;
    vector<int> numbers (noIntegers);
    vector<int> segments (noIntegers);

    int currEvenNumberCount = 0;
    int oddTermCount = 0;
    int currentSegment = 0;
    for (int i = 0; i < noIntegers; i++) {
        cin >> numbers[i];

        if (numbers[i] % 2 == 0) {
            currEvenNumberCount++;
        }
        segments[i] = currentSegment;

        if (i < noIntegers - 1) {
            char op;
            cin >> op;
            if (op == '+' || op == '-') {
                oddNumberCounts.push_back(currEvenNumberCount);
                currentSegment++;
                if (currEvenNumberCount == 0) {
                    oddTermCount++;
                }
                currEvenNumberCount = 0;
            }
        } else {
            oddNumberCounts.push_back(currEvenNumberCount);
            currentSegment++;
            if (currEvenNumberCount == 0) {
                oddTermCount++;
            }
        }
    }

    {
        bool totalEven = (oddTermCount % 2) == 0;
        if (totalEven) {
            cout << "even" << endl;
        } else {
            cout << "odd" << endl;
        }
    }
    for (long long query = 0; query < noQueries; query++) {
        long long pos, newValue;
        cin >> pos >> newValue;

        pos--;

        bool wasOdd = (numbers[pos] % 2) == 0;
        bool isOdd = (newValue % 2) == 0;

        numbers[pos] = newValue;

        if (wasOdd == isOdd) {

        } else if (wasOdd && !isOdd) {
            oddNumberCounts[segments[pos]]--;
            if (oddNumberCounts[segments[pos]] == 0) {
                oddTermCount++;
            }
        } else if (!wasOdd && isOdd) {
            oddNumberCounts[segments[pos]]++;
            if (oddNumberCounts[segments[pos]] == 1) {
                oddTermCount--;
            }
        }

        bool totalEven = (oddTermCount % 2) == 0;
        if (totalEven) {
            cout << "even" << endl;
        } else {
            cout << "odd" << endl;
        }
    }


    return 0;
}