:
s/^$/__,0,1,2,3,4,5,6,7/
s/,[^,]*/&0&1&2&3&4&5&6&7&8&9/g
s/_//
//b
s/1/&>/
s/4/&:/
:a
s/,\(...\)>,...,\(...\)\(,...\)/\1 \2 \3>/
s/\([^ ]*,\(...\)>*\):\(.\{1,24\}\)/\2 \1\3:/
ta
s/ 403.*//
s/ 0*/\n/g
s/,0*//