for b in v 2n 2i 1p 4n 1p 27 1p 4R 5c N;{
read a
%02d
printf "%s/$_/$_ $_:$_:$_
" $[1970+a/316**3] $[c=64#$b,c/30] $[c%30] $[a%=86400,a/3600] $[a/60%60] $[a%60]
}
Note that non-ascii characters in the above source code will be escaped (such as \x9f).