6 task

def q(a, c):
    return a is not None and a + c > resmax


def w(a, c):
    return a is not None and a + c < resmin


f = open("test.txt", 'r')

a2 = [None] * 10
a3 = [None] * 10
a23 = [None] * 10
b2 = [None] * 10
b3 = [None] * 10
b23 = [None] * 10
c2 = [0] * 10
c3 = [0] * 10
c23 = [0] * 10
count, resmax, resmin = 0, 0, 100000
for i in f:
    now = int(i)
    if now % 6 == 0:
        count += c2[(11 - (now % 10)) % 10]
        count += c3[(11 - (now % 10)) % 10]
        count += c23[(11 - (now % 10)) % 10]
        if q(a2[(11 - (now % 10)) % 10], now):
            resmax = a2[(11 - (now % 10)) % 10] + now
        if q(a3[(11 - (now % 10)) % 10], now):
            resmax = a3[(11 - (now % 10)) % 10] + now
        if q(a23[(11 - (now % 10)) % 10], now):
            resmax = a23[(11 - (now % 10)) % 10] + now
        if a23[now % 10] is None or a23[now % 10] < now:
            a23[now % 10] = now

        if w(b2[(11 - (now % 10)) % 10], now):
            resmin = b2[(11 - (now % 10)) % 10] + now
        if w(b3[(11 - (now % 10)) % 10], now):
            resmin = b3[(11 - (now % 10)) % 10] + now
        if w(b23[(11 - (now % 10)) % 10], now):
            resmin = b23[(11 - (now % 10)) % 10] + now
        if b23[now % 10] is None or b23[now % 10] > now:
            b23[now % 10] = now
        c23[now % 10] += 1
        continue
    if now % 2 == 0:
        count += c3[(11 - (now % 10)) % 10]
        count += c23[(11 - (now % 10)) % 10]
        if q(a3[(11 - (now % 10)) % 10], now):
            resmax = a3[(11 - (now % 10)) % 10] + now
        if q(a23[(11 - (now % 10)) % 10], now):
            resmax = a23[(11 - (now % 10)) % 10] + now
        if a2[now % 10] is None or a2[now % 10] < now:
            a2[now % 10] = now

        if w(a3[(11 - (now % 10)) % 10], now):
            resmin = b3[(11 - (now % 10)) % 10] + now
        if w(a23[(11 - (now % 10)) % 10], now):
            resmin = b23[(11 - (now % 10)) % 10] + now
        if b2[now % 10] is None or b2[now % 10] > now:
            b2[now % 10] = now
        c2[now % 10] += 1
        continue
    if now % 3 == 0:
        count += c2[(11 - (now % 10)) % 10]
        count += c23[(11 - (now % 10)) % 10]
        if q(a2[(11 - (now % 10)) % 10], now):
            resmax = a2[(11 - (now % 10)) % 10] + now
        if q(a23[(11 - (now % 10)) % 10], now):
            resmax = a23[(11 - (now % 10)) % 10] + now
        if a3[now % 10] is None or a3[now % 10] < now:
            a3[now % 10] = now

        if w(b2[(11 - (now % 10)) % 10], now):
            resmin = b2[(11 - (now % 10)) % 10] + now
        if w(b23[(11 - (now % 10)) % 10], now):
            resmin = b23[(11 - (now % 10)) % 10] + now
        if b3[now % 10] is None or b3[now % 10] > now:
            b3[now % 10] = now
        c3[now % 10] += 1
print(count, resmin, resmax, sep='')