#include <stdio.h> // cc -o microrg32 microrg32.c ; WORK=3 ; LEN=4 #######
  #include <stdint.h> // SECRET="Something random like qhohxks5mx9elv6ujgx3"
  #include <stdlib.h> // export P="$LEN:$SECRET:x.org" ## Public domain code
  #define b(z) for(c=0;c<(z);c++) // ./microrg32 $WORK $LEN | head -1 | tail
  uint32_t c,e[42],f[42],g=19,h=13,r,s,n[45],i,k;char*q;void m(){int c;r=0;b
  (12)f[c+c%3*h]^=e[c+1];b(g){r=(r+c)%32;i=c*7%g;k=e[i++];k^=e[i%g]|~e[(i+1)
  %g];n[c]=n[c+g]=k>>r|k<<-r%32;}for(c=39;c--;f[c+1]=f[c])e[c]=n[c]^n[c+1]^n
  [c+4];*e^=1;b(3)e[c+h]^=f[c*h]=f[c*h+h];}int main(int p,char **v){q=getenv
  ("P");if(q&&p>2){for(;;m()){b(3){for(r=0;r<4;){f[c*h]^=k=(*q?*q&255:1)<<8*
  r++;e[16+c]^=k;if(!*q++){p=0;b(17+(1<<*v[1]%32))m();b(983){s=e[1+c%2];r=c;
  b(4){p=p>0?p:*v[2]%16;i=s;s>>=8;if(p!=0){i&=31;i+=i<8?50:89;}printf(p?"%c"
  :"%02x",i&255);}c=r;if(c%2)m();if(--p<1||c>981)puts("");}return 0;}}}}}}//