#library+

x =

7197774595263^: <
   10348909689347579265^: <
      158319260416525061728777^: <
         0^: <>,
         ~&V(),
         574179086^: <
            ^: (
               1460,
               <0^: <>,1^: <>,1707091^: <>,30^: <>>)>>,
      213568^: <>,
      128636^: <97630998857^: <>>>>

f = ~&diNiCBPvV*^