ftp://ftp.debian.or.jp/debian-jp/dists/potato-jp/main/  direct

[DIR]upgrade-i386/  direct  47 twin directories
[DIR]source/  direct  65535+ twin directories
[DIR]disks-towns/  direct  5 twin directories
[DIR]disks-sparc/  direct  74 twin directories
[DIR]disks-powerpc/  direct  58 twin directories
[DIR]disks-pc98/  direct  4 twin directories
[DIR]disks-m68k/  direct  90 twin directories
[DIR]disks-i386/  direct  151 twin directories
[DIR]disks-alpha/  direct  76 twin directories
[DIR]binary-sparc/  direct  26205+ twin directories
[DIR]binary-powerpc/  direct  27147+ twin directories
[DIR]binary-m68k/  direct  5270+ twin directories
[DIR]binary-ia64/  direct  12703+ twin directories
[DIR]binary-i386/  direct  62864+ twin directories
[DIR]binary-alpha/  direct  12600+ twin directories
[DIR]binary-all/  direct  1871+ twin directories