def _type_insert(self, handle, key, value):
    handle.rpush(key, value)
dp O(n^3)
dataset/ETHPy150Open agoragames/kairos/kairos/redis_backend.py/RedisSeries._type_insert--crossover with--dataset/ETHPy150Open algorhythms/LintCode/Submatrix Sum.py/Solution.submatrixSum