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- # Copyright (C) 2020, 2019 Girish M
- # This program is free software; you can redistribute it and/or modify
- # it under the terms of the GNU General Public License as published by
- # the Free Software Foundation; either version 3 of the License, or
- # (at your option) any later version.
- #
- # This program is distributed in the hope that it will be useful,
- # but WITHOUT ANY WARRANTY; without even the implied warranty of
- # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- # GNU General Public License for more details.
- #
- # You should have received a copy of the GNU General Public License
- # along with this program; if not, write to the Free Software
- # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
- # MA 02110-1301, USA.
- #
- n = input("Enter a positive integer: ")
- num = n
- sum = 0
- if n<=0:
- print "Invalid input"
- else:
- while n>0:
- sum = sum + n**2
- n = n-1
- print "sum of squares from 1 to", num, "is ", sum
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