N,Q=map(int,input().split())
A=list(map(int,input().split()))
idx=[i for i in range(N) if A[i]==1]
C=[0]*N
for i in range(N):
    if A[i]==9:
        C[i]+=1
C=[0]+C
for i in range(1,N+1):
    C[i]+=C[i-1]
for q in range(Q):
    l,r=map(int,input().split())
    l-=1
    ans=C[r]-C[l]
    for i in idx:
        if l<=i<r:
            ans+=r-i-1
    print(ans)