import java.text.SimpleDateFormat;
import java.util.Calendar;


public class T2 {

    public static void main(String[] args) {
        Calendar c = Calendar.getInstance();
        
        int m = c.get(Calendar.MONTH) + 1;            //月份
        int s = (int)Math.ceil( (m - 1)  / 3) + 1;     //季度
        System.out.println(s);
        int em = (s - 1) * 3;                        //上一个季度最后一个月
        
        Calendar sc = Calendar.getInstance();
        sc.setTimeInMillis(c.getTimeInMillis());
        sc.set(Calendar.MONTH, em);
        sc.set(Calendar.DAY_OF_MONTH, 1);
        sc.set(Calendar.HOUR_OF_DAY, 0);
        sc.set(Calendar.MINUTE, 0);
        sc.set(Calendar.SECOND, 0);
        sc.set(Calendar.MILLISECOND, 0);
        sc.add(Calendar.MILLISECOND, -1);
        out(sc);//结束时间
        

        Calendar ec = Calendar.getInstance();
        ec.setTimeInMillis(c.getTimeInMillis());
        ec.set(Calendar.MONTH, em - 1);    //month 基于0,一月的值是0
        ec.set(Calendar.DAY_OF_MONTH, 1);
        ec.set(Calendar.HOUR_OF_DAY, 0);
        ec.set(Calendar.MINUTE, 0);
        ec.set(Calendar.SECOND, 0);
        ec.set(Calendar.MILLISECOND, 0);
        ec.add(Calendar.MONTH, -11);     //向前12个月，但是-11
        out(ec);//开始时间
        
    }
    
    protected static void out(Calendar c){
        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        String str = sdf.format(c.getTime());
        System.out.println(str);
    }
    
}