#!/usr/bin/python3.8
def mcalc(lst,k):
	for i in range(len(lst)):
		lst[i]+=k
#	for el in lst:
#		el+=k
#		print(el)
#	lst[0]=k
	print(lst)
#	return lst
def main():
	ml=[1,2,3,4]
	nl=mcalc(ml,2)
	print(ml)
	

if __name__=="__main__":
	main()