a, b, c, d = range(1, 5)
result = (
# First is 1
a *
# Then goes 2, result is 2 now
b *
# And then 3, result is 6
c *
# And 4, result should be 24
d
)
print(result)
YSwgYiwgYywgZCA9IHJhbmdlKDEsIDUpCgpyZXN1bHQgPSAoCiAgICAjIEZpcnN0IGlzIDEKICAgIGEgKgogICAgIyBUaGVuIGdvZXMgMiwgcmVzdWx0IGlzIDIgbm93CiAgICBiICoKICAgICMgQW5kIHRoZW4gMywgcmVzdWx0IGlzIDYKICAgIGMgKgogICAgIyBBbmQgNCwgcmVzdWx0IHNob3VsZCBiZSAyNAogICAgZAopCiAgICAKcHJpbnQocmVzdWx0KQo=