Python #10 WA

python代码，WA了第10个点

算法应该没问题

# 90pts
def ele():
    flag = 0
    cnt = w = l = 0
    for ch in tot:
        if ch == 'E':
            break
        if ch == 'W':
            w += 1
            cnt += 1
        elif ch == 'L':
            l += 1
            cnt += 1
        if (w >= 11 or l >= 11) and abs(w-l) >= 2 :
            print(w, ":", l, sep='')
            flag = 1
            w = l = cnt = 0
    if cnt != 0:
        print(w, ":", l, sep='')
        flag = 1
    if flag == 0:
        print("0:0")

def twn():
    flag = 0
    cnt = w = l = 0
    for ch in tot:
        if ch == 'E':
            break
        if ch == 'W':
            w += 1
            cnt += 1
        elif ch == 'L':
            l += 1
            cnt += 1
        if (w >= 21 or l >= 21) and abs(w-l) >= 2 :
            print(w, ":", l, sep='')
            flag = 1
            w = l = cnt = 0
    if cnt != 0:
        print(w, ":", l, sep='')
        flag = 1
    if flag == 0:
        print("0:0")

tot = ""
while (1):
    str = input()
    tot += str
    f = 0
    for ch in str:
        if ch == 'E':
            f = 1
            break
    if f:
        break

ele()
print()
twn()

标准输入：

WWWWWWWWWWWEadfadf;jadf

标准输出：

11:0
0:0

11:0

我的输出：

11:0

11:0