#!/usr/bin/python3

"""Eliminate the chaff, output the wheat."""

import sys

prev_mw_line = ''
show = 0
for line in (raw_line.rstrip('\n') for raw_line in sys.stdin):
    if line.startswith('MW! '):
        prev_mw_line = line
    elif line.startswith('Caught signal'):
        show = 1
        print()
        print(prev_mw_line)
        mw_prev_line = ''
    if show:
        print(line)
    if line.startswith('Done dumping'):
        mw_prev_line = ''
        show = 0
    sys.stdout.flush()