#include<iostream>
using namespace std;
int main(){  // C++ 14级 13位ISBN号码的校验码
	//978-7-121-4 1 4 8 9 - 3
	//012345678910111213141516
	int n1,n2,n3,n4,n5,n6,n7,n8,n9,n10,n11,n12,n13,sum=0;
	string s;
	cin>>s;
	n1=s[0]-'0';
	n2=s[1]-'0';
	n3=s[2]-'0';
	n4=s[4]-'0';
	n5=s[6]-'0';
	n6=s[7]-'0';
	n7=s[8]-'0';
	n8=s[10]-'0';
	n9=s[11]-'0';
	n10=s[12]-'0';
	n11=s[13]-'0';
	n12=s[14]-'0';
	sum=(n1+n3+n5+n7+n9+n11+(n2+n4+n6+n8+n10+n12)*3)%10;
	if(sum==0) n13=0;
	else n13=10-sum;
	//cout<<"sum:"<<sum<<" n13:"<<n13<<endl;
	if(n13==s[16]-'0') cout<<"yes";
	else cout<<"no";
	return 0;
}