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

p1=[]
for i in range(N):
    if A[i]==1:
        p1.append(i)
    
B=[0]*(N+1)
for i in range(N):
    if A[i]==9:
        B[i+1]+=1

for i in range(N):
    B[i+1]+=B[i]

for _ in range(Q):
    l,r=map(int,input().split())
    l-=1
    c=B[r]-B[l]
    for i in p1:
        if i<l or i>=r:
            continue
        c+=r-i-1
    print(c)