diff --git a/19/art.c b/19/art.c
new file mode 100644
index 0000000..7777baf
--- /dev/null
+++ b/19/art.c
@@ -0,0 +1,50 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <limits.h>
+
+                                                         typedef
+                                                   #define U     realloc
+                                              #define           r(n,a,b,c) \
+                                        case n        :return(B){a          ,b,c}
+                                  struct      B{int x,y,z            ;}B;inline  static
+                             B S( B      a,B b){            return(B){a.            x-b.x,a.y-
+                       b. y ,a.z-b.z};}                typedef            struct Q{int        c,e;B*
+                  R; }Q;inline            static int M(              B a,B b){           return abs(a.x-b.
+           x)+abs(a.y-b            .y)+abs(a.z-            b.z);}const             size_t Z=            sizeof(B)
+     ,q=sizeof            (Q);inline             static B T(B             b,int i){int           x=b.x,y=b.y   ,z=b.z;
+  switch(i){r(    0,x,y,z);r(            1,x,-y,-z);r           (2,x,z,-y);r            (3,x,-z,y);r           (4,y,x,-z
+  );r(     5,y,-x,z);           r(6,y,z,x);r            (7,y,-z,-x);           r(8,z,x,y);r            (9,z,-x,-y  );r(
+  10,z           ,y,-x);r(11,z,-y,x)           ;r(12,-x,y,-            z);r(13,-x,            -y,z);r(14            ,-x,
+  z,y)                 ;r(15,-x        ,-z,-y);r(            16,-y,x,z);r(           17,-y,-x,-z                    );r(
+  18,                        -y,z,-x);r(19           ,-y,-z,x);r(             20,-z,x,-y                            );r(
+  21,-                             z,-x,y)   ;r(22,-z,y,x               );r(23,-                                     z,-
+  y,-                                      x);}               return(B){0};}                                        int
+  main                                        (){Q*E=NULL;getchar();                                                int
+  n,e                                                =1,I=0,G                                                       =0,i
+  =0,   j,m                                           ;while                                             (scanf     ("-"
+  "- "  "scanner "                                     "%d "                                             "---\n"    ,&n
+  )==   1){n++;E=U(E,n      *q                         );Q*                                 s =& E[      n-1];s     ->R=
+  NULL  ;s->c    =1;s      ->e=n==                     1;B                                  b;while     (scanf      (""""
+  "%i"  ",%i,"              "%i",          &           b.x,             &b.y,&b.            z)==3)      {s->R       =U(s
+  ->R   ,++s               ->c *Z)         ; s ->      R[s           ->c-1 ]=b;I++;}        scanf(    "%*""["       "^-"
+  "]"   );memset(&s->       R[0],0         ,Z);}B      *W;W       =malloc(    I*Z);I=       E[0].c;memcpy(W,E       [0].
+  R,I   *Z);while(e<n       ) for(         int i=      0;i<     n;i++)        for(int       m=0 ;m<  24;m++){      int r
+  ,y,   u,o,p     ,a,       d,f,g;         if(!E[      i].e     )for(r                      =0; r<     I;r++)      for(y
+  =1;   y<E[i               ].c;y          ++){g=      0;B      D=S(T(                      E[i].R      [y],m),     W[r]
+  ) ;   for(u               =1;u<E         [i].c;      u++)     {B c=S                      (T(E[i        ].R[u],   m),D
+  ) ;   for(o               =0;o<I         ;o ++)      if(!     memcmp                      (&c,&W        [o],Z))   {g++
+  ;if   (g >=               12){ {         B Y[E[      i].c     -1];p=          0;for(      a=1;a<        E[i]      .c;a
+  ++)       {               B t=S(         T(E[i]      .R[a     ],m),D         );f=0;       for(d=                  0;d<
+  I;d                        ++)if(!       memcmp      ( &t      ,& W[d       ],Z ))        {                       f++;
+ break                         ;}if(       !f ) Y      [  p       ++]=t;}   memcpy                                  (W+I
+  ,Y,p                           *Z);I+=  p;E[i]       .R[0          ]=(B){-D.                                      x,-D
+  .y,-D.                             z};E[i].e=        1;e                                                          ++;
+      printf(""                                        "%d/"                                                    "%d\n",
+            e, n);}                                   goto                                              X;}}}}X:
+                   }for(;i<                            n;i                                     ++)for(j=
+                          0;j<n;j                      ++){                             m=M(E[i]
+                                .R[0],E[               j].R                     [0]);if(
+                                       m>G) G=         m ;}             printf(""
+                                              "Silver: %d\nGold: %d\n",I
+                                                     -1,G) ;}