How many points are there on the globe where by walking one mile south, one mile east and one mile north you reach the place where you started?
- Case 1 : Answer is a function of N. Output it with N with multipliers or divisor numbers following N. For example,
N * 2,
N / 2,
N * 3 / 4.
- Case 2 : Answer is a integer. Just put the number without any decimal places if its an integer. If the answer is
Infinity, output Infinity.
- Case 3 : Floating point number. Round it off to 2 decimal places and output it as I.xx where I is the integer part of the answer, and xx are 2 decimal digits after rounding off.
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Spaces do not matter.