a=int(input())
b=int(input())
l=0
r=1
while(r**a<=b):
    l=r;r=r*2
while(l+1<r):
    mid=(l+r)//2
    if (mid**a<=b):
        l=mid
    else:
        r=mid
if (l**a<=b):
    print(l)
else:
    print(r)

python yyds!!!

https://www.luogu.com.cn/record/77141607