Chef and the matrix queries

Chef has a (n x m) matrix. Initially the matrix elements have some values. You can perform 2 types of queries on the matrix. The two query types are as follows: 1. Query one is of the type - 1 x1 y1 x2 y2 k For this query you have to increment by k all the elements in the sub matrix that has its top left corner element row as x1 and column as y1 and the bottom right corner element row as x2 and