NB. Programmiersprache "J",  http://www.jsoftware.com/
   'MerryChristmas!' ;&((|.,'|'"_,])"1@(}.\@|.,#{.{:)) 'HappyNewYear!'
+-------------------------------+---------------------------+
|               |               |             |             |
|              s|s              |            r|r            |
|             as|sa             |           ar|ra           |
|            mas|sam            |          ear|rae          |
|           tmas|samt           |         Year|raeY         |
|          stmas|samts          |        wYear|raeYw        |
|         istmas|samtsi         |       ewYear|raeYwe       |
|        ristmas|samtsir        |      NewYear|raeYweN      |
|       hristmas|samtsirh       |     yNewYear|raeYweNy     |
|      Christmas|samtsirhC      |    pyNewYear|raeYweNyp    |
|     yChristmas|samtsirhCy     |   ppyNewYear|raeYweNypp   |
|    ryChristmas|samtsirhCyr    |  appyNewYear|raeYweNyppa  |
|   rryChristmas|samtsirhCyrr   | HappyNewYear|raeYweNyppaH |
|  erryChristmas|samtsirhCyrre  |            !|!            |
| MerryChristmas|samtsirhCyrreM |                           |
|              !|!              |                           |
+-------------------------------+---------------------------+