n, Q = map(int, input().split())
A = list(map(int, input().split()))

nine = [0] * (n + 1)
cum = [0] * (n + 1)
cum2 = [0] * (n + 1)
for i, a in enumerate(A):
    nine[i + 1] = nine[i]
    cum[i + 1] = cum[i]
    if a == 9:
        nine[i + 1] += 1
        A[i] = 0
    elif a == 1:
        cum[i + 1] += 1

    cum2[i + 1] = cum2[i] + cum[i]


for _ in range(Q):
    l, r = map(int, input().split())
    l -= 1
    ans = nine[r] - nine[l]
    ans += cum2[r] - cum2[l]
    ans -= cum[l] * (r - l)
    print(ans)