Devu renowned classical singer he invite big functionsfestival recently invite all World Classical Singing Festival other Devu comedian Churu invitedDevu provide organizer list song require time singe he sing n song ith song ti minute exactly the Comedian Churu crack joke all joke 5 minute exactlyPeople mainly come listen Devu but know need rest 10 minute song on hand Churu active person do not need restyou organizer optimal sсhedule event for reason follow condition the duration event d minute Devu complete song with satisfy previous condition number joke crack Churu possible if possible find way conduct song Devu output 1 otherwise find maximum number joke Churu crack grand event