dlzka, zmeny = [int(x) for x in input().split(' ')]

vz = input().split(' ')

nums = []
vyrazy = []
num2v = {}

parnych = 0
i = 0
while i < len(vz):
    num2v[int(i / 2)] = len(vyrazy)
    nums.append(int(vz[i]) % 2)
    if int(vz[i]) % 2 == 0:
        parnych += 1
    if i + 1 == len(vz) or vz[i + 1] in ['-', '+']:
        vyrazy.append(parnych)
        parnych = 0
    i+=2

parnost = 0
for i in vyrazy:
    if i == 0:
        parnost += 1
if parnost % 2 == 0:
    print('even')
else:
    print('odd')

for _ in range(zmeny):
    a, b = [int(x) for x in input().split(' ')]
    if nums[a - 1] != b%2:
        nums[a - 1] = b%2
        if b%2 == 0:
            vyrazy[num2v[a - 1]] += 1
        else:
            vyrazy[num2v[a - 1]] -= 1
    parnost = 0
    for i in vyrazy:
        if i == 0:
            parnost += 1
    if parnost % 2 == 0:
        print('even')
    else:
        print('odd')