s/./iiabcdefghii=&001234567800=/
s/\w*\(..\(.\)..\).*=\2/\1/g
s/\(.\)\(.\).\(.\)\(.\)\(.\)\(.\).\(.\)\(.\)/\1\6\1\7\2\5\2\8\3\5\3\8\4\6\4\7/
s/i.\|.0//g
s/..\B/& /g