diff --git a/pycipher/foursquare.py b/pycipher/foursquare.py
index 8f9118e..120d005 100644
--- a/pycipher/foursquare.py
+++ b/pycipher/foursquare.py
@@ -24,7 +24,7 @@ def __init__(self,key1='zgptfoihmuwdrcnykeqaxvsbl',key2='mfnbdcrhsaxyogvituewlqz
     def encipher_pair(self,a,b):
         arow,acol = self.alph.index(a)/5, self.alph.index(a)%5
         brow,bcol = self.alph.index(b)/5, self.alph.index(b)%5
-        return (self.key1[arow*5+bcol], self.key2[brow*5+acol])
+        return (self.key1[int(arow*5)+bcol], self.key2[int(brow*5)+acol])
         
     def decipher_pair(self,a,b):
         arow,acol = self.key1.index(a)/5, self.key1.index(a)%5
@@ -42,7 +42,7 @@ def encipher(self,string):
         :param string: The string to encipher.
         :returns: The enciphered string.
         """                
-        string = self.remove_punctuation(string)  
+        string = self.remove_punctuation(string)
         if len(string)%2 == 1: string = string + 'X'
         ret = ''
         for c in range(0,len(string.upper()),2):
@@ -70,4 +70,4 @@ def decipher(self,string):
         return ret    
         
 if __name__ == '__main__': 
-    print('use "import pycipher" to access functions')
\ No newline at end of file
+    print('use "import pycipher" to access functions')