#include #include #include #include using namespace std; int main(){ string p0; cin >> p0; vector p; for(int i = p0.length()-1; i >= 0; i--) p.push_back(p0[i]-'0'); p.push_back(0); vector q(p.size(), 0); bool isusetwonum = true; for(int i = 0; i < p0.length(); i++){ //cerr << q[i] << " " << p[i] << endl; if(isusetwonum && (q[i]+2 == p[i] || q[i]+3 == p[i] || q[i]+4 == p[i])){ q[i+1] = 1; }else if(q[i]+6 == p[i] || q[i]+7 == p[i]){ isusetwonum = false; }else if(p[i] == q[i] && i+1 == p0.length()){ cout << "Yes" << endl; return 0; }else{ break; } } cout << "No" << endl; return 0; }