Team Schedule

Edward

$$ Available only on odd days

Fei

Same as Edward but available for the whole last week

George

Available between $22$nd$-28$th

Helen

$$ Unavailable $12$th$-24$th

Question

Select all weekdays on which all four coworkers can meet.

Calendar

$\backslash$table$[[$SUN$,$MON,TUE,WED,THU,FRI,SAT$],[1,2,3,4,5,6,7],[8,9,10,11,12,13,14],[15,16,17,18,19,20,21],[22,23,24,25,26,27,28],[29,30,,,,,]]$