三条候选只有一条是原因

运行下面这段程序，填写它打印出来的结果。

LOG = [
    ("INFO",  "starting up"),
    ("ERROR", "workdir missing: /home/me/台账-8167"),
    ("ERROR", "handler not ready"),
    ("ERROR", "handler not ready"),
    ("ERROR", "handler not ready"),
    ("ERROR", "giving up"),
]

errs = [m for (lv, m) in LOG if lv == "ERROR"]
cnt = {}
for m in errs:
    cnt[m] = cnt.get(m, 0) + 1
top = sorted(cnt.items(), key=lambda kv: (-kv[1], kv[0]))[0][0]
print(str(len(errs)) + "/" + errs[-1].replace(" ", "")
      + "/" + top.replace(" ", ""))