N,mod=map(int,input().split())
dp=[[0]*3 for i in range(2*N)]
dp[1][2]=1
score=[[0]*3 for i in range(2*N)]
score[1][2]=1
for i in range(1,2*N-1):
  for j in range(3):
    for k in range(3):
      if j==2 and k==0:
        continue
      dp[i+1][k]+=dp[i][j]
      dp[i+1][k]%=mod
      if k<=j:
        score[i+1][k]+=score[i][j]
      elif k==1 and j==0:
        score[i+1][k]+=score[i][j]*(i-1)
      elif k==2 and j==1:
        score[i+1][k]+=score[i][j]*i
      else:
        score[i+1][k]+=score[i][j]*i*(i-1)
      score[i+1][k]%=mod
result=1
for x in range(1,2*N):
  result*=x
  result%=mod
for i in range(1,N):
  result*=score[2*i+1][0]
  result%=mod
print(result)