Kyselyt

def num(q):
    if q <= 9:
        return q

    s = 9
    for i in range(2,19):
        ns = i * 9 * (10 ** (i-1)) + s
        if q <= ns:
            if q % i == (s + 1) % i:
                return int(((q-s) % (i * (10 ** i))) / (10 ** (i-1)*i)) + 1
            for j in range(1, i):
                if q % i == (s + j + 1) % i:
                    return int(((q-s-j) % (10 ** (i-j)*i)) / (10 ** (i-j-1)*i))
        s = ns


n = int(input())

for ni in range(n):
    print(str(num(int(input()))))

Test 1

Group: 1

Verdict: ACCEPTED

Test 2

Group: 2

Verdict: ACCEPTED

Test 3

Group: 3

Verdict: ACCEPTED