달력만들기(2)

=DATE($A$4+IF($E$4>1,1,0),1,1)

=(DATE ($A$4+ IF($E$4>1,1,0), 1, 1)+(3-1)*7)+2-WEEKDAY(DATE($A$4+IF($E$4>1,1,0),1,1),1)+IF(2<WEEKDAY(DATE($A$4+IF($E$4>1,1,0),1,1),1),7,0)