Kyselyt

def get_digit(n):
  k = 0
  while (n > 0):
    k += 1
    n -= 9 * 10**(k-1) * k
  n += 9 * 10**(k-1) * k
  if (n%k == 0):
    res = 10**(k-1) + int(n / k) - 1
    return res % 10
  else:
    res = 10**(k-1) + int(n / k)
    return int(((res/(10**(k-(n%k))))) % 10)

q = int(input())
r = []
for i in range(0, q):
    r.append(int(input()))

for i in r:
    print(get_digit(i))

Test 1

Group: 1

Verdict: ACCEPTED

Test 2

Group: 2

Verdict: ACCEPTED

Test 3

Group: 3

Verdict: WRONG ANSWER