Nth character in Concatenated Decimal String

If all decimal numbers are concatenated in a string then we will get a string which looks like string P as shown below. We need to tell Nth character of this string.
P = “12345678910111213141516171819202122232425262728293031….”
Examples:

N= 10 10th character is 1
N = 11 11th character is 0
N = 50 50th character is 3
N = 190 190th character is 1

import math

def find(n):
    i = 0
    while n>0:
        i+=1
        n-= math.floor(math.log10(i))+1
    return str(i)[n-1]

print(find(1000))

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