python 代码

n,q=input().split()
n=int(n)
q=int(q)
books=[]
for i in range(n):
    books.append(int(input()))
requests=[]
for i in range(q):
    length,code=input().split()
    length=int(length)
    code=int(code)
    requests.append((length,code))
books.sort()
results=[]
for l,c in requests:
    results.append(-1)
    for b in books:
        if (b-c)%10**l==0:
            results.pop()
            results.append(b)
            break
for b in results:
    print(b)