N,K = map(int,input().split())
i = 6
count = 0
while True:
  c = 1
  pos = 1
  while pos < i:
    pos *= 2
    if pos <= i:
      c += 1
  S = []    
  for j in range(c-1,-1,-1):
    if i // (2**j) % 2 == 0:
      S.append("A")
    else:
      S.append("M")
  MMA = False
  for j in range(c-2):
    if S[j] == "M" and S[j+1] == "M" and S[j+2] == "A":
      MMA = True
  if MMA:
    count += 1
  if count == K:
    break
  i += 1
for x in range(c):
  print(S[x],end = "")
print()