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f=lambda n,x=1:x<len(n)and all(e[0]!='0'for e in [n[:x],n[x:]])and='0'and all(int(ye)**.5%1==0for y ine [n[in[n[:x],n[x:]])or f(n,x+1)
Try it online!Try it online!
Error-28 for falsey@ophact's tip
f=lambda n,x=1:x<len(n)and all(e[0]!='0'for e in [n[:x],n[x:]])and all(int(y)**.5%1==0for y in [n[:x],n[x:]])or f(n,x+1)
Try it online!
Error for falsey
f=lambda n,x=1:x<len(n)and all(e[0]!='0'and int(e)**.5%1==0for e in[n[:x],n[x:]])or f(n,x+1)
-28 for @ophact's tip
