from itertools import permutations

N = int(input())

L = []
for A, B, C, D, E, F, G in permutations(range(10), 7):
    if A*D*B == 0: continue
    if B != 1: continue
    ABC = 100*A + 10*B + C
    DEF = 100*D + 10*E + F
    BGCB = 1000*B + 100*G + 10*C + B
    if ABC + DEF == BGCB:
        L += [BGCB]
        break

for A, B, C, D, E, F, G, H, I, J in permutations(range(10), 10):
    if A*D*H == 0: continue
    if H != 1: continue
    AABC = 1000*A + 100*A + 10*B + C
    DEFG = 1000*D + 100*E + 10*F + G
    HIBCJ = 10000*H + 1000*I + 100*B + 10*C + J
    if AABC + DEFG == HIBCJ:
        L += [HIBCJ]
        break

for A, B, C, D, E, F, G, H, I, J in permutations(range(10), 10):
    if A*G*B == 0: continue
    if A+1 != B: continue
    ABCDEF = 100000*A + 10000*B + 1000*C + 100*D + 10*E + F
    GDFHI = 10000*G + 1000*D + 100*F + 10*H + I
    BDJEDJ = 100000*B + 10000*D + 1000*J + 100*E + 10*D + J
    if ABCDEF + GDFHI == BDJEDJ:
        L += [BDJEDJ]
        break

print(L[N-1])