Project Euler Solutions Added.

Project Euler/Problem 01/sol1.py

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+'''
+Problem Statement:
+If we list all the natural numbers below 10 that are multiples of 3 or 5,
+we get 3,5,6 and 9. The sum of these multiples is 23.
+Find the sum of all the multiples of 3 or 5 below N.
+'''
+n = int(raw_input().strip())
+sum=0;
+for a in range(3,n):
+    if(a%3==0 or a%5==0):
+        sum+=a
+print sum;