od:`i$","\:1:`day02 v:{d::od; d[1 2]:x; {~99=d x}{d[d x+3]:((;+;*)d x)[d d x+1;d d x+2]; x+4}/0; *d} v 12 2 100/:,/(19690720=v@)#+!99 99 \\ 4090689 7733