class StaticArrayDemo
{
	public static void main(String args[])
   {
		int nDaysArray[] = {31,28,31,30,31,30,31,30,31,30,31,30};
       for(int m=0;m<nDaysArray.length;m++)
             System.out.println(m+"月有"+ nDaysArray[m]+"天"+"\n");
   }
}