Put python 3 print in Infix_to_Postfix.py

Author: laurent-pck

Infix_to_Postfix.py

@@ -85,7 +85,7 @@ def infixToPostfix(self, exp):
 		while not self.isEmpty(): 
 			self.output.append(self.pop()) 
 
-		print "".join(self.output) 
+		print("".join(self.output))
 
 # Driver program to test above function 
 exp = "a+b*(c^d-e)^(f+g*h)-i"