#include<stdio.h>
main(){
    int count = 0;
    int maxd[] = {31,28,31,30,31,30,31,31,30,31,30,31};
    //1~9month
    //0nday,1(n-1)day,2(n-2)day,3(n-3)dayが存在する
    for(int i = 1;i <= 9;i++){
        for(int j = 0;j < 4;j++){
            if(i-j >= 0 && j*10 + (i-j) <= maxd[i-1]){
                count++;
            }
        }
    }
    //10~12month
    for(int i = 10;i <= 12;i++){
        for(int j = 1;j < 4;j++){
            if(i-j < 10 && j*10 + (i-j) <= maxd[i-1]){
                count++;
            }
        }
    }
    printf("%d\n",count);
}