#include <iostream> using namespace std; int arr[27]={0,31,28,31,30,31,30,31,31,30,31,30,31}; int main() { int n; int year,month,day; while(~scanf("%d",&n)){ for(int i=0;i<n;++i){ cin>>year>>month>>day; if(year%400==0||(year%4==0&&year%100!=0)){ arr[2...