Find the missing permutation: Difference between revisions

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 <pre>
-          ABCD
+                    ABCD
-          CABD
+                    CABD
-          ACDB
+                    ACDB
-          DACB
+                    DACB
-          BCDA
+                    BCDA
-          ACBD
+                    ACBD
-          ADCB
+                    ADCB
-          CDAB
+                    CDAB
-          DABC
+                    DABC
-          BCAD
+                    BCAD
-          CADB
+                    CADB
-          CDBA
+                    CDBA
-          CBAD
+                    CBAD
-          ABDC
+                    ABDC
-          ADBC
+                    ADBC
-          BDCA
+                    BDCA
-          DCBA
+                    DCBA
-          BACD
+                    BACD
-          BADC
+                    BADC
-          BDAC
+                    BDAC
-          CBDA
+                    CBDA
-          DBCA
+                    DBCA
-          DCAB
+                    DCAB
 </pre>