Added solution for problem 33

ProblemSelection.py

@@ -54,6 +54,7 @@ from Problems.Problem29 import Problem29
 from Problems.Problem30 import Problem30
 from Problems.Problem31 import Problem31
 from Problems.Problem32 import Problem32
+from Problems.Problem33 import Problem33
 from Problems.Problem67 import Problem67
 
 
@@ -62,7 +63,7 @@ class ProblemSelection:
 	problemNumbers = [ 0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10,
 						  11, 12, 13, 14, 15, 16, 17, 18, 19, 20,
 						  21, 22, 23, 24, 25, 26, 27, 28, 29, 30,
-						  31, 32, 67]
+						  31, 32, 33, 67]
 
 	#Returns the problem corresponding to the given problem number
 	@staticmethod
@@ -131,6 +132,8 @@ class ProblemSelection:
 			return Problem31()
 		elif(problemNumber == 32):
 			return Problem32()
+		elif(problemNumber == 33):
+			return Problem33()
 		elif(problemNumber == 67):
 			return Problem67()