n,m=map(int,input().split())
x=list(map(int,input().split()))
y=list(map(int,input().split()))
y.append(float('inf'))
y.sort()
for i in range(n):
    for j in range(m+1):
        if x[i]<y[j]:
            ans=y[j]-x[i]
            if ans==float('inf'):
                print('Infinity')
            else:
                print(ans)
            break