by@kuromunori
AC
541ms
2a+>Ia*I+!v v[[^$.t;I]< >[[3>t.8&[???av v[&8^$j6aj6aj6< >?4&]?*4&]?*[?4&[?*[?*+[?4&]?*]?*+?[[v \R:6-*?[[*?[&5?]-*?]]*?]&5?[[-*?[[*?< ok!-?]]] @
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28863