#
# This program reads in a list of numbers and computes the sum of
# the squares of all these numbers
#
# 1. Input
#
L = raw_input("Enter a list of numbers, separated with commas : ")
Numbers = L.split(",")
Numbers = map(float,Numbers)
#
# 2. Processing
#
#Sum = 0
for P in Numbers:
    Sum = Sum + P*P

#
# 3. Output
#
print "The sum of the squares is : ",Sum