#include <>
int main()
{
double x,m;
int w;
scanf("%lf %d",&x,&w);
if(x<=3){
m=10;
}else if(x<=10){
m=10+(x-3)*2;
}else{
m=10+14+(x-10)3;
}
if(int(m+0.5)>int(m)){
m+=1;
}
if(w>=5){
m=m+w/52;
}
printf("%d",int(m));
return 0;
}