N, K = map(int, input().split())
datas = list(map(int, input().split()))

def process_data(datas, key, N):
    S = [0] * (N+1)
    current = 0
    for i in range(N):
        current |= datas[i]
        if current == key:
            S[i+1] = S[i] + 1
        else:
            S[i+1] = S[i]
    return S

key = (1 << K) - 1
Q = int(input())
S = process_data(datas, key, N)

for _ in range(Q):
    query = list(map(int, input().split()))
    if query[0] == 1:
        _, i, v = query
        datas[i-1] = v
        S = process_data(datas, key, N)
    elif query[0] == 2:
        _, l, r = query
        if S[r] - S[l-1] > 0:
            print(r - l + 1)
        else:
            print(-1)