Mancek

import numpy as np

def sumEvenNumbersInMatrix(matrix):
    return sum(matrix[matrix%2==0])

rows = 3
columns = 3

#Example input
# 1 2 3

Mancek

def sumOdd(lowerLimit, upperlimit):
  return sum(range(lowerLimit if lowerLimit%2 else lowerLimit+1,upperLimit,2)) 

lowerLimit = int(input())
upperLimit = int(input())

print (sumOdd(lowerLimit,upperLimit))