#include <stdio.h> int main() { int x,y; int flag=0; scanf("%d %d",&x,&y); int a[2][13]={{31,28,31,30,31,30,31,31,30,31,30,31},{31,29,31,30,31,30,31,31,30,31,30,31}}; if((x%40&&x%100!=0)||x%4000) flag=1; printf("%d",a[flag][y-1]); return 0; }