# w+3.py
output("""
output(\"\"\"
output(\\\"\\\"\\\"
X=\\\\\\\"\\\\\\\"

while True:
    output(X)
    X = \\\\\\\"output(\\\\\\\'\\\\\\\" + escape(X) + \\\\\\\"\\\\\\\')\\\\\\\"
\\\"\\\"\\\")
\"\"\")
""")