Add all the A tasks

Task/Align-columns/PicoLisp/align-columns.l

@@ -0,0 +1,21 @@
+(let Sizes NIL                         # Build a list of sizes
+   (let Lines                          # and of lines
+      (make
+         (in "input.txt"                     # Reading input file
+            (while (split (line) "$")        # delimited by '$'
+               (let (L (link (mapcar pack @))  S Sizes)
+                  (setq Sizes                   # Maintain sizes
+                     (make
+                        (while (or L S)
+                           (link
+                              (max
+                                 (inc (length (pop 'L)))
+                                 (pop 'S) ) ) ) ) ) ) ) ) )
+      (for L Lines                                 # Print lines
+         (prinl (apply align L (mapcar - Sizes))) )   # left aligned
+      (prinl)
+      (for L Lines
+         (prinl (apply align L Sizes)) )              # right aligned
+      (prinl)
+      (for L Lines
+         (prinl (apply center L Sizes)) ) ) )         # and centered