use_builtin_judger on
n_tests 100
n_ex_tests 0
n_sample_tests 0
n_subtasks 4
subtask_end_1 25
subtask_end_2 50
subtask_end_3 75
subtask_end_4 100
subtask_score_1 25
subtask_score_2 25
subtask_score_3 25
subtask_score_4 25
input_pre Algebra
input_suf in
output_pre Algebra
output_suf ans
time_limit 1
memory_limit 512