#!/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 (nl)

if __name__=="__main__":
	main()