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def calculate_sum(x,y):
s=0
for i in range(x,y+1):
s+=i
return s
# bad spacing and naming
def calculate_range_sum(start: int, end: int) -> int:
"""Calculate the sum of integers in a range (inclusive)."""
return sum(range(start, end + 1))
# Improved with type hints, docstring, and better naming