Free Hero Mesh

%R
  Display a roman number.

%s
  Display a string. If the value is not a string, it will display it as
  whatever type it is.

%T
  Only valid if this puzzle set uses MBCS. This is like %c but uses all of
  the bits to make a TRON-32 character code. If the code is less than 256
  then this is the same as %c. (This is not fully implemented or tested.)

%u
  Display a unsigned decimal number.

%x
  Display a unsigned hexadecimal number in lowercase.

%X