service_id,monday,tuesday,wednesday,thursday,friday,saturday,sunday,start_date,end_date
cal1-mon-tue-wed-thu-fri-sat,1,1,1,1,1,1,0,20260704,20260829
cal2-mon-tue-wed-thu-fri-3,1,1,1,1,1,0,0,20260701,20261231
cal3-sat-1,0,0,0,0,0,1,0,20260704,20261226
cal4-mon-tue-thu-fri-2,1,1,0,1,1,0,0,20260702,20261231
cal5-wed-1,0,0,1,0,0,0,0,20260701,20261230