#include<stdio.h> int main() { int year = 0; int month = 0; int days[12] = { 31,28,31,30,31,30,31,31,30,31,30,31 }; int day = 0; while (scanf("%d%d", &year, &month) != EOF) { if (((year % 4 == 0) && (year % 100 != 0)) || (year % 400 == 0)) { if (month == 2) day...