schedule=()
for hour in $(seq 24); do
    echo -n "TODO at ${hour}hour : "
    read temp
    schedule+=($temp)
done

while [ : ]; do
    echo -n "check your schedule. enter the hour(1~24) (exit:0): "
    read temp
    if (( temp == 0 )); then
        break
    fi
    echo ${schedule[$temp]}
done