from itertools import accumulate

N, Q = (int(x) for x in input().split())
A = list(map(int, input().split()))
L1_num, L1_cnt, L9 = [], [], []
for num, i in enumerate(A):
    if i == 1:
        L1_num.append(N-num-1)
        L1_cnt.append(1)
        L9.append(0)
    elif i == 9:
        L1_num.append(0)
        L1_cnt.append(0)
        L9.append(1)
    else:
        L1_num.append(0)
        L1_cnt.append(0)
        L9.append(0)
L1_num, L1_cnt, L9 = list(accumulate(L1_num)), list(accumulate(L1_cnt)), list(accumulate(L9))
ans = []
for _ in range(Q):
    l, r = (int(x) for x in input().split())
    l, r = l-1, r-1
    res = 0
    if l == 0:
        res += L9[r]
    else:
        res += L9[r]-L9[l-1]
    if l == 0:
        res += L1_num[r] - L1_cnt[r]*(N-r-1)
    else:
        res += L1_num[r]-L1_num[l-1] - (L1_cnt[r]-L1_cnt[l-1])*(N-r-1)
    ans.append(res)

for i in ans:
    print(i)