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.

2012/kang/kang.orig.c

@@ -0,0 +1,5 @@
+long long n,u,m,b;main(e,r){f\
+or(;n++||(e=getchar()|32)>=0;b="ynwtsflrabg"[n%=11]-e?b:b*8+
+n)for(r=b%64-25;e<47&&b;b/=8)for(n=19;n;n["1+DIY/.K430x9\
+G(kC["]-42&255^b||(m+=n>15?n:n>9?m%u*~-u:~r?n+
+!r*16:n*16,b=0))u=1ll<<6177%n--*4;printf("%llx",m);}