MOD = 10 ** 9 + 7
INF = 10 ** 15

def main():  
    P = [int(a) for a in input()][::-1]
    num = (2,3,4)
    flag = True
    for i in range(len(P) - 1):
        if P[i] in num:
            P[i + 1] -= 1
        else:
            flag = False
            break
    if flag and P[-1] == 0:
        print('Yes')
    else:
        print('No')
if __name__ == '__main__':
    main()