restore *.orig.c to each entry

Under each yyyy/dir there is a file of the form '*.orig.c'
containing the original source code, or as close as we can
get to the original source code.

2011/hou/hou.orig.c

@@ -0,0 +1,34 @@
+#include <stdio.h>
+#include <math.h>
+#define clear 1;if(c>=11){c=0;sscanf(_,"%lf%c",&r,&c);while(*++_-c);}\
+  else if(argc>=4&&!main(4-(*_++=='('),argv))_++;g:c+=
+#define puts(d,e) return 0;}{double a;int b;char c=(argc<4?d)&15;\
+  b=(*_%__LINE__+7)%9*(3*e>>c&1);c+=
+#define I(d) (r);if(argc<4&&*#d==*_){a=r;r=usage?r*a:r+a;goto g;}c=c
+#define return if(argc==2)printf("%f\n",r);return argc>=4+
+#define usage main(4-__LINE__/26,argv)
+#define calculator *_*(int)
+#define l (r);r=--b?r:
+#define _ argv[1]
+#define x
+
+double r;
+int main(int argc,char** argv){
+  if(argc<2){
+    puts(
+      usage: calculator 11/26+222/31
+      +~~~~~~~~~~~~~~~~~~~~~~~~calculator-\
+      !                          7.584,367 )
+      +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~+
+      ! clear ! 0 ||l   -x  l   tan  I (/) |
+      +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~+
+      ! 1 | 2 | 3 ||l  1/x  l   cos  I (*) |
+      +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~+
+      ! 4 | 5 | 6 ||l  exp  l  sqrt  I (+) |
+      +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~+
+      ! 7 | 8 | 9 ||l  sin  l   log  I (-) |
+      +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(0
+    );
+  }
+  return 0;
+}