请大佬留下代码，下面是写的代码，但是有错，有没有知道错哪里的大佬，或者有没有更简约的，展示一下，谢谢大佬

Question

import sys
import re

class Node:
    def __init__(self,data = None, next = None):
        self.data = data
        self.next = next

class Queue:
    def __init__(self):
        self.head = Node()
        self.tail = self.head

    def put(self,n):
        self.tail.next = Node(n)
        self.tail = self.tail.next

    def get(self):
        return self.head.next.data

    def delete(self):
        g = self.head
        g.next = g.next.next
        if g.next==None:
            self.tail = g

def funcname():
    s = sys.stdin.readline()
    r = re.findall(r'd+', s)
    bridgelength = int(r[0])
    bridgeload = int(r[1])
    br = Queue()
    num = 1
    sw = 0
    sl = 0

    while True:
        s = sys.stdin.readline()
        if s=="":
            break
        r = re.findall(r'd+', s)
        for i in range(0,len(r),2):
            l = int(r[i])
            w = int(r[i+1])
            sw += w
            sl += l
            br.put([num,l,w])
            while sl-br.get()[1] >= bridgelength:
                t = br.get()
                sl -= t[1]
                sw -= t[2]
                br.delete()
            if sw>bridgeload:
                print(br.get()[0])
                return
            num += 1
    print(-1)

funcname()