from collections import defaultdict
import sys
readline=sys.stdin.readline

A,B=map(int,readline().split())
alp=[chr(i) for i in range(97,97+26)]
S=[[] for b in range(B)]
for a in alp:
    for b in alp:
        for c in alp:
            for d in alp:
                S[(ord(a)*pow(A,3,B)%B+ord(b)*pow(A,2,B)%B+ord(c)*A%B+ord(d))%B].append(a+b+c+d)
for b in range(B):
    if len(S[b])>=2:
        print(S[b][0])
        print(S[b][1])
        exit()