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# Uses python3
import sys
def getOptimalSummands(n):
summands = []
if n < 3:
summands.append(n)
return summands
runningSum = 0
for i in range(1, n + 1):
runningSum = runningSum + i
summands.append(i)
if runningSum == n:
break
if runningSum > n:
del summands[-1]
summands[-1] = summands[-1] + n - runningSum + i
break
return summands
if __name__ == '__main__':
input = sys.stdin.read()
n = int(input)
summands = getOptimalSummands(n)
print(len(summands))
for x in summands:
print(x, end=' ')
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