/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
import java.io.*;
 
import java.time.* ;
 
/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
	public static void main (String[] args) throws java.lang.Exception
	{
 
    ZoneId z = ZoneId.of( "America/Edmonton" ) ;
    YearMonth currentYm = YearMonth.now( z ) ;
 
    List< YearMonth > yms = new ArrayList<>() ;
    int limit = 3 ; // We want current month plus three previous months. 
    for( int i = 0 ; i <= limit ; i ++ ) {
        YearMonth ym = currentYm.minusMonths( i ) ;
        yms.add( ym ) ;
    }
 
    for( YearMonth ym : yms ) {
        System.out.println( "YearMonth: " + ym + " starts: " + ym.atDay( 1 ) +  " ends: " + ym.atEndOfMonth() ) ; 
    }
 
 
	}
}

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