import random

n = random.choice(range(2, 10))
s = ""
qq = "qwertyuiopasdfghjklzxcvbnm"
for i in range(n):
    s += random.choice(qq)
q = random.choice(range(1, 10))
print(q, 1)
for i in range(q):
    t = random.choice(range(2))
    br = random.choice(range(1, n))
    if t == 0:
        print(s[:br], end='')
        print(random.choice(qq), end='')
        print(s[br:])
    else:
        print(s[:br-1] + s[br:])
print(s)