n=int(input()) M = 205 dp = [0] * M dp[0] = 1 for i in range(n): ndp = [0] * M for j in range(M): # 今の和 for k in range(1,M): # 選ぶ番号 l = k if k<10:l-=1 elif k<100:l-=2 else:l-=3 if j+l