#include<iostream> #include<cstdio> using namespace std; int main() { int s,w; cin>>s,w; if (s==1&&w<1) cout<<8; else if (s==1&&w>1) cout<<(8+(w-1)*1); else if (s==0&&w<1) cout<<10; else if (s==0&&w>1) cout<<(10+(w-1)*2); return 0; }