rbenv install 3.1.2
cd q1
# run
ruby main.rb
# test
bash check_output.sh
cd q2
# run
ruby main.rb <n>
# test
bash check_output.sh
cd q3
# run
ruby main.rb <n> <m> <t>
# test
bash check_output.sh
cd q4
# run
ruby main.rb <n> <m> <t>
# test
bash check_output.sh