Python中求解最长回文子串的代码在本地运行正常，但在在线编译器中报错，如何修改N值？

错误:

Traceback (most recent call last): File "/usercode/file.py", line 25, in <module> for i in range(N): TypeError: range() integer end argument expected, got str.

代码:

def TheLongest(s):
    s = '#' + '#'.join(s) + '#'
    length = len(s)
    Rl = [0]*length
    pos = 0
    MaxRight = 0
    MaxLen = 0
    for i in range(length):
        if i < MaxRight:
            Rl[i] = min(Rl[2*pos - i], (MaxRight - i))
        else:
            Rl[i] = 1
        while i - Rl[i]>= 0 and i+Rl[i]<length and s[i - Rl[i]] == s[i+Rl[i]]:
            Rl[i]+=1
        if Rl[i]+i-1 >MaxRight:
            pos = i
            MaxRight = Rl[i]+i-1
        MaxLen = max(MaxLen,Rl[i])
    return (MaxLen-1)
N = raw_input()
a_list = []
for i in range(N):
s = raw_input()
a_list.append(TheLongest(s))
for i in range(N):
print a_list[i]