# This program has two functions, non-recursive and recursive, that
# takes a list of numbers as parameters and returns the sum of 
# these numbers.
def lstSumI(l):
    sum = 0
    for elm in l:
        sum = sum + elm
    return sum 

def lstSumR(l):
    if l == []: return 0
    return l[0] + lstSumR(l[1:]) 

def main():
    l = input("Enter the list: ")
    print "SumOElm(", l,") =", lstSumI(l)
    print "SumOElm(", l,") =", lstSumR(l)
main()