#include <iostream> using namespace std; int main(){ int a,b; cin>>a>>b; cout<<(b+a*10)/19; return 0; }

#include <bits/stdc++.h> using namespace std; int main(){ int a,b; cin>>a>>b; double c=(a*10+b)/19; int d=floor(c); cout<<d; return 0; }

#include <iostream>using namespace std;int main() {int a,b;cin>>a>>b;cout<<(10*a+b)/19;return 0;}

#include <iostream> using namespace std; int main() { int a,b; cin>>a>>b; double k = (a*10+b)/19; cout<<k; return 0; }

a,b=input().split() a=int(a) b=int(b) s=str(a)+"."+str(b) s=eval(s) money=s/1.9 money='%d' % money print(money)

#include <bits/stdc++.h> using namespace std; int main(){ int a,b; cin>>a>>b; double k=(a*10+b)/19; int w=floor(k); cout<<w; return 0; }

#include <iostream> using namespace std; int main(){ int a,b; cin>>a; cin>>b; cout<<(a10+b)/(110+9); return 0; }

#include <bits/stdc++.h> using namespace std; int main(){ int a,b; cin>>a>>b; double c=a+b*0.1; cout <<int(c/1.9); return 0; }