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

# "9" の個数の累積和
B = [0]
for i in range(n):
    B.append(B[-1] + (1 if A[i] == 9 else 0))

# "1" の位置
idx = []
	
for i in range(n):
    if((A[i] in [0,1,9]) == False):
        print("WA")
    if(A[i] == 1):
        idx.append(i)

if((len(idx) <= 8) == False):
    print("WA")
    
for _ in range(q):
    l, r = map(int,input().split())
    if((1 <= l <= r <= n) == False):
        print("WA")
    if((A[l-1] != 0) == False):
        print("WA")
    l -= 1
    r -= 1
    
    if(A[l]==0):
        print("WA")
    # A[l:r]内の"9"の個数
    a = B[r+1] - B[l]
    
    # "1"による寄与
    b = 0
    for i in idx:
        if(l <= i <= r):
            b += (r - i)
    
    ans = a + b
    print(ans)