use_builtin_judger on
use_builtin_checker ncmp
n_tests 20
n_ex_tests 4
n_sample_tests 4
n_subtasks 4
subtask_end_1 1
subtask_end_2 4
subtask_end_3 10
subtask_end_4 20
subtask_score_1 5
subtask_score_2 15
subtask_score_3 30
subtask_score_4 50
input_pre qiandao
input_suf in
output_pre qiandao
output_suf out
time_limit 1
memory_limit 256