'rjustify n xs' right-justifies its String argument xs inside a box of width n.

The names of all months in a year.

'groupsOfSize n xs' splits the list xs into segments of length n (the last one may be shorter).

A list of pictures of days of a given month in a given year.

A picture containing all days of a given month in a given year.

A picture of all days of a given month in a given year with weekday header.

A picture for all 12 months of a given year.

Print a given year with month distributed over a given number of columns.

The main entry point of the program.