reduce {
  /* the actual code is 44 Byte only, because the argument of the $replace command is STRING DATA not CODE!!!
  CODE: 
  var %o $replace($1,%x)
  return $replace(%o,%x)
  */
  var %o $replace($1,abc,a-c,a-cd,a-d,a-de,a-e,a-ef,a-f,a-fg,a-g,a-gh,a-h,a-hi,a-i,a-ij,a-j,a-jk,a-k,a-kl,a-l, $&
    a-lm,a-m,a-mn,a-n,a-no,a-o,a-op,a-p,a-pq,a-q,a-qr,a-r,a-rs,a-s,a-st,a-t,a-tu,a-u,a-uv,a-v,a-vw,a-w,a-wx,a-x,a-xy, $&
    a-y,a-yz,a-z,bcd,b-d,b-de,b-e,b-ef,b-f,b-fg,b-g,b-gh,b-h,b-hi,b-i,b-ij,b-j,b-jk,b-k,b-kl,b-l,b-lm,b-m,b-mn, $&
    b-n,b-no,b-o,b-op,b-p,b-pq,b-q,b-qr,b-r,b-rs,b-s,b-st,b-t,b-tu,b-u,b-uv,b-v,b-vw,b-w,b-wx,b-x,b-xy,b-y,b-yz,b-z,cde, $&
    c-e,c-ef,c-f,c-fg,c-g,c-gh,c-h,c-hi,c-i,c-ij,c-j,c-jk,c-k,c-kl,c-l,c-lm,c-m,c-mn,c-n,c-no,c-o,c-op,c-p,c-pq, $& 
    c-q,c-qr,c-r,c-rs,c-s,c-st,c-t,c-tu,c-u,c-uv,c-v,c-vw,c-w,c-wx,c-x,c-xy,c-y,c-yz,c-z,def,d-f,d-fg,d-g,d-gh, $&
    d-h,d-hi,d-i,d-ij,d-j,d-jk,d-k,d-kl,d-l,d-lm,d-m,d-mn,d-n,d-no,d-o,d-op,d-p,d-pq,d-q,d-qr,d-r,d-rs,d-s,d-st,d-t,d-tu, $& 
    d-u,d-uv,d-v,d-vw,d-w,d-wx,d-x,d-xy,d-y,d-yz,d-z,efg,e-g,e-gh,e-h,e-hi,e-i,e-ij,e-j,e-jk,e-k,e-kl,e-l,e-lm, $& 
    e-m,e-mn,e-n,e-no,e-o,e-op,e-p,e-pq,e-q,e-qr,e-r,e-rs,e-s,e-st,e-t,e-tu,e-u,e-uv,e-v,e-vw,e-w,e-wx,e-x,e-xy,e-y,e-yz, $& 
    e-z,fgh,f-h,f-hi,f-i,f-ij,f-j,f-jk,f-k,f-kl,f-l,f-lm,f-m,f-mn,f-n,f-no,f-o,f-op,f-p,f-pq,f-q,f-qr,f-r,f-rs, $&
    f-s,f-st,f-t,f-tu,f-u,f-uv,f-v,f-vw,f-w,f-wx,f-x,f-xy,f-y,f-yz,f-z,ghi,g-i,g-ij,g-j,g-jk,g-k,g-kl,g-l,g-lm, $& 
    g-m,g-mn,g-n,g-no,g-o,g-op,g-p,g-pq,g-q,g-qr,g-r,g-rs,g-s,g-st,g-t,g-tu,g-u,g-uv,g-v,g-vw,g-w,g-wx,g-x,g-xy,g-y,g-yz, $&
    g-z,hij,h-j,h-jk,h-k,h-kl,h-l,h-lm,h-m,h-mn,h-n,h-no,h-o,h-op,h-p,h-pq,h-q,h-qr,h-r,h-rs,h-s,h-st,h-t,h-tu, $&
    h-u,h-uv,h-v,h-vw,h-w,h-wx,h-x,h-xy,h-y,h-yz,h-z,ijk,i-k,i-kl,i-l,i-lm,i-m,i-mn,i-n,i-no,i-o,i-op,i-p,i-pq, $&
    i-q,i-qr,i-r,i-rs,i-s,i-st,i-t,i-tu,i-u,i-uv,i-v,i-vw,i-w,i-wx,i-x,i-xy,i-y,i-yz,i-z,jkl,j-l,j-kl,j-l,j-lm,j-m,j-mn, $&
    j-n,j-no,j-o,j-op,j-p,j-pq,j-q,j-qr,j-r,j-rs,j-s,j-st,j-t,j-tu,j-u,j-uv,j-v,j-vw,j-w,j-wx,j-x,j-xy,j-y,j-yz,j-z,klm, $&
    k-m,k-mn,k-n,k-no,k-o,k-op,k-p,k-pq,k-q,k-qr,k-r,k-rs,k-s,k-st,k-t,k-tu,k-u,k-uv,k-v,k-vw,k-w,k-wx,k-x,k-xy, $&
    k-y,k-yz,k-z,lmn,l-n,l-no,l-o,l-op,l-p,l-pq,l-q,l-qr,l-r,l-rs,l-s,l-st,l-t,l-tu,l-u,l-uv,l-v,l-vw,l-w,l-wx, $&
    l-x,l-xy,l-y,l-yz,l-z,mno,m-o,m-op,m-p,m-pq,m-q,m-qr,m-r,m-rs,m-s,m-st,m-t,m-tu,m-u,m-uv,m-v,m-vw,m-w,m-wx, $&
    m-x,m-xy,m-y,m-yz,m-z,nop,n-p,n-pq,n-q,n-qr,n-r,n-rs,n-s,n-st,n-t,n-tu,n-u,n-uv,n-v,n-vw,n-w,n-wx,n-x,n-xy, $&
    n-y,n-yz,n-z,opq,o-q,o-pq,o-q,o-qr,o-r,o-rs,o-s,o-st,o-t,o-tu,o-u,o-uv,o-v,o-vw,o-w,o-wx,o-x,o-xy,o-y,o-yz,o-z,pqr, $&
    p-r,p-rs,p-s,p-st,p-t,p-tu,p-u,p-uv,p-v,p-vw,p-w,p-wx,p-x,p-xy,p-y,p-yz,p-z,qrs,q-s,q-st,q-t,q-tu, $&
    q-u,q-uv,q-v,q-vw,q-w,q-wx,q-x,q-xy,q-y,q-yz,q-z,rst,r-t,r-tu,r-u,r-uv,r-v,r-vw,r-w,r-wx,r-x,r-xy,r-y,r-yz, $&
    r-z,stu,s-u,s-uv,s-v,s-vw,s-w,s-wx,s-x,s-xy,s-y,s-yz,s-z,tuv,t-v,t-vw,t-w,t-wx,t-x,t-xy,t-y,t-yz, $&
    t-z,uvw,u-w,u-wx,u-x,u-xy,u-y,u-yz,u-z,vwx,v-x,v-xy,v-y,v-yz,v-z,wxy,w-y,w-yz,w-z,xyz,x-z)
  return $replace(%o,zyx,z-x,z-xw,z-w,z-wv,z-v,z-vu,z-u,z-ut,z-t,z-ts,z-s,z-sr,z-r,z-rq,z-q,z-qp,z-p,z-po,z-o,z-on,z-n, $& 
    z-nm,z-m,z-ml,z-l,z-lk,z-k,z-kj,z-j,z-ji,z-i,z-ih,z-h,z-hg,z-g,z-gf,z-f,z-fe,z-e,z-ed,z-d,z-dc,z-c,z-cb,z-b,z-ba,z-a,yxw, $& 
    y-w,y-wv,y-v,y-vu,y-u,y-ut,y-t,y-ts,y-s,y-sr,y-r,y-rq,y-q,y-qp,y-p,y-po,y-o, $&
    y-on,y-n,y-nm,y-m,y-ml,y-l,y-lk,y-k,y-kj,y-j,y-ji,y-i,y-ih,y-h,y-hg,y-g,y-gf,y-f,y-fe,y-e,y-ed,y-d,y-dc,y-c,y-cb,y-b, $&
    y-ba,y-a,xwv,x-v,x-vu,x-u,x-ut,x-t,x-ts,x-s,x-sr,x-r,x-rq,x-q,x-qp,x-p,x-po,x-o,x-on,x-n, $&
    x-nm,x-m,x-ml,x-l,x-lk,x-k,x-kj,x-j,x-ji,x-i,x-ih,x-h,x-hg,x-g,x-gf,x-f,x-fe,x-e,x-ed,x-d,x-dc,x-c,x-cb,x-b,x-ba,x-a, $&
    wvu,w-u,w-ut,w-t,w-ts,w-s,w-sr,w-r,w-rq,w-q,w-qp,w-p,w-po,w-o,w-on,w-n,w-nm,w-m,w-ml,w-l, $&
    w-lk,w-k,w-kj,w-j,w-ji,w-i,w-ih,w-h,w-hg,w-g,w-gf,w-f,w-fe,w-e,w-ed,w-d,w-dc,w-c,w-cb,w-b,w-ba,w-a,vut,v-t, $&
    v-ut,v-t,v-ts,v-s,v-sr,v-r,v-rq,v-q,v-qp,v-p,v-po,v-o,v-on,v-n,v-nm,v-m,v-ml,v-l,v-lk,v-k,v-kj,v-j,v-ji,v-i, $&
    v-ih,v-h,v-hg,v-g,v-gf,v-f,v-fe,v-e,v-ed,v-d,v-dc,v-c,v-cb,v-b,v-ba,v-a,uts,u-s,u-sr,u-r, $&
    u-rq,u-q,u-qp,u-p,u-po,u-o,u-on,u-n,u-nm,u-m,u-ml,u-l,u-lk,u-k,u-kj,u-j,u-ji,u-i,u-ih,u-h,u-hg,u-g,u-gf,u-f,u-fe,u-e, $&
    u-ed,u-d,u-dc,u-c,u-cb,u-b,u-ba,u-a,tsr,t-r,t-rq,t-q,t-qp,t-p,t-po,t-o,t-on,t-n,t-nm,t-m, $&
    t-ml,t-l,t-lk,t-k,t-kj,t-j,t-ji,t-i,t-ih,t-h,t-hg,t-g,t-gf,t-f,t-fe,t-e,t-ed,t-d,t-dc,t-c,t-cb,t-b,t-ba,t-a,srq,s-q, $&
    s-qp,s-p,s-po,s-o,s-on,s-n,s-nm,s-m,s-ml,s-l,s-lk,s-k,s-kj,s-j,s-ji,s-i,s-ih,s-h,s-hg,s-g, $&
    s-gf,s-f,s-fe,s-e,s-ed,s-d,s-dc,s-c,s-cb,s-b,s-ba,s-a,rqp,r-p,r-po,r-o,r-on,r-n,r-nm,r-m, $&
    r-ml,r-l,r-lk,r-k,r-kj,r-j,r-ji,r-i,r-ih,r-h,r-hg,r-g,r-gf,r-f,r-fe,r-e,r-ed,r-d,r-dc,r-c,r-cb,r-b,r-ba,r-a,qpo,q-o, $&
    q-on,q-n,q-nm,q-m,q-ml,q-l,q-lk,q-k,q-kj,q-j,q-ji,q-i,q-ih,q-h,q-hg,q-g,q-gf,q-f,q-fe,q-e, $&
    q-ed,q-d,q-dc,q-c,q-cb,q-b,q-ba,q-a,pon,p-n,p-nm,p-m,p-ml,p-l,p-lk,p-k,p-kj,p-j,p-ji,p-i, $&
    p-ih,p-h,p-hg,p-g,p-gf,p-f,p-fe,p-e,p-ed,p-d,p-dc,p-c,p-cb,p-b,p-ba,p-a,onm,o-m,o-ml,o-l, $&
    o-lk,o-k,o-kj,o-j,o-ji,o-i,o-ih,o-h,o-hg,o-g,o-gf,o-f,o-fe,o-e,o-ed,o-d,o-dc,o-c,o-cb,o-b,o-ba,o-a,nml,n-l, $&
    n-lk,n-k,n-kj,n-j,n-ji,n-i,n-ih,n-h,n-hg,n-g,n-gf,n-f,n-fe,n-e,n-ed,n-d,n-dc,n-c,n-cb,n-b,n-ba,n-a, $&
    mlk,m-k,m-kj,m-j,m-ji,m-i,m-ih,m-h,m-hg,m-g,m-gf,m-f,m-fe,m-e,m-ed,m-d,m-dc,m-c,m-cb,m-b, $&
    m-ba,m-a,lkj,l-j,l-ml,l-l,l-lk,l-k,l-kj,l-j,l-ji,l-i,l-ih,l-h,l-hg,l-g,l-gf,l-f,l-fe,l-e,l-ed,l-d,l-dc,l-c,l-cb,l-b, $&
    l-ba,l-a,kji,k-i,k-lk,k-k,k-kj,k-j,k-ji,k-i,k-ih,k-h,k-hg,k-g,k-gf,k-f,k-fe,k-e,k-ed,k-d,k-dc,k-c,k-cb,k-b,k-ba,k-a, $&
    jih,j-h,j-hg,j-g,j-gf,j-f,j-fe,j-e,j-ed,j-d,j-dc,j-c,j-cb,j-b,j-ba,j-a,ihg,i-g,i-ji,i-i, $&
    i-ih,i-h,i-hg,i-g,i-gf,i-f,i-fe,i-e,i-ed,i-d,i-dc,i-c,i-cb,i-b,i-ba,i-a,hgf,h-f,h-fe,h-e, $&
    h-ed,h-d,h-dc,h-c,h-cb,h-b,h-ba,h-a,gfe,g-e,g-ed,g-d,g-dc,g-c,g-cb,g-b,g-ba,g-a,fed,f-d, $&
    f-dc,f-c,f-cb,f-b,f-ba,f-a,edc,e-c,e-fe,e-e,e-ed,e-d,e-dc,e-c,e-cb,e-b,e-ba,e-a,dcb,d-b, $&
    d-ba,d-a,cba,c-a)
}