import sys input = sys.stdin.readline from math import pi N=int(input()) if N<=2: MAX=int(pi*(10**N)) SS=-1 ind=1 for i in range(MAX+1): for j in range(MAX+1): S1=0 for s in str(i): S1+=int(s) S2=0 for s in str(j): S2+=int(s) if SS==S1*S2: ind+=1 elif SS