# This sample tests the parser's ability to detect parse trees that are too deep
# and report an error rather than risking a crash in the binder or type evaluator.

x = 3

for _ in range(2):
    x = (
        x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + -x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + -x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + -x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + -x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + -x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + -x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
        + x
    )
