Reduce module concept in python

 from functools import reduce

# mylist=[1,2,3,4,23]

# # num = 0 
# # for i in mylist:
# #     num = num+i
# # print(num)

# num =reduce(lambda x,y:x-y, mylist)
# print(num)

letters=["U""m","a","i","r"]
word = reduce(lambda x,y:x+y, letters)
print(word)

fac = [1,2,3,4,5]
fac.reverse()
factorial = reduce(lambda x,y:x*y,fac)
print(factorial)

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