$@=29628;s/./y$   IIVCXL426      (-:V$XIVX
LMCDIVX$dfor$$_   .=5x$&*8%      $@;$$$_=$
_/egfor-4e3..0;   $;=qq/LXX      IV+CXVII+
      CXV            +CX            VI+
      XXX            II+            XCV
      II+            CX+            CXI
      +CX            VI+            CIV
      +CI            +CX            IV+
      XXX            II+            LXX
      X+C               I+C      XIV
      +CV               III      +XX
      XII               +CI      V+X
      CVI               I+X      CIX
      +CV               II+      CI+
      CXI               V+X      LIV
      +X+               XLV      III
      C+C               MII      XV+
      DXI               M+I      MCC
      MCM                  +XXIII
      DCI                  MMV+II
      C+I                  MMVIII
/;$;=~s/\s+//g;            print+
eval(join+q/./,            map-${
$_},+split/\+/,            ~~$;);
[download]

Inspired by Erudil's, There can be only one!, My 2 cents worth, my own The Power of Three, and (of course) thospel's original magic formula.

For those of you who prefer signatures and want (at least a little) more insight into what's going on:

s/./y$IVCXL426(-:$XLMCDIVX$dfor$$_.=5x$&*8%29628;$$$_=$_/egfor-4e3..0;
print+eval(join+qq/./,+map-${$_},split/\+|\n/,+qq/LXXIV+CXVII+CXV+CXVI
XXXII+XCVII+CX+CXI+CXVI+CIV+CI+CXIV+XXXII+LXXX+CI+CXIV+CVIII+XXXII+CIV
XCVII+XCIX+CVII+CI+CXIV+XLIV+X/)
[download]