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n = int(input().strip())
arr = [1 if int(temp)>0 else -1 if int(temp)<0 else 0 for temp in input().strip().split(' ') ]
print("{0:.6f}".format(arr.count(1)/n))
print("{0:.6f}".format(arr.count(-1)/n))
print("{0:.6f}".format(arr.count(0)/n))
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n = int(input().strip()) arr = [1 if int(temp)>0 else -1 if int(temp)<0 else 0 for temp in input().strip().split(' ') ] print("{0:.6f}".format(arr.count(1)/n)) print("{0:.6f}".format(arr.count(-1)/n)) print("{0:.6f}".format(arr.count(0)/n))