tsk 8

def smpl(x):
    for d in (2, int(x**0.5)+1):
        if x % d == 0:
            return False
    return True


cnt = 1
for i in range(2_532_000, 2_532_160+1):
    if smpl(i):
        if i % 10 == 7:
            print(cnt, i)
            cnt += 1