# Fun at Cake Shop

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#
#   Darshak and Chandan went to a cake shop, and started finding a delicious cake to eat.
#   They decided to eat pancakes. Being misers, they end up with a discussion to challenge who will eat the
#   last pancake. They to follow a simple rule, and eat in rounds.
#   In the i'th round, Darshak eats i cakes whereas Chandan eats i2 cakes.
#
#   There are only X pancakes, you need to help the shopkeeper to find who had the last pancake,
#   as he will pay the bill.
#
#   Input:
#   First line contains an integer X.
#
#   Output:
#   Output "Chandan" (without the quotes) if "Chandan" eats the last pancake ,
#   "Darshak"(without the quotes) otherwise.
#
#   Constraints:
#   1 ≤ X ≤ 10^8
#
#   SAMPLE INPUT
#   12
#
#   SAMPLE OUTPUT
#   Chandan
#
#   Explanation
#   12 pancakes are eaten as :
#   Darshak Chandan
#   1 1
#   2 4
#   3 1 ( Only 1 remains)
#   Hence, Chandan consumes the last one.
#
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