{"trustable":true,"prependHtml":"\u003cstyle type\u003d\"text/css\"\u003e\n #problem-body \u003e pre {\n display: block;\n padding: 9.5px;\n margin: 0 0 10px;\n font-size: 13px;\n line-height: 1.42857143;\n word-break: break-all;\n word-wrap: break-word;\n color: #333;\n background: rgba(255, 255, 255, 0.5);\n border: 1px solid #ccc;\n border-radius: 6px;\n }\n\u003c/style\u003e\n","sections":[{"title":"","value":{"format":"HTML","content":"\u003cdiv id\u003d\"problem-body\"\u003e\n\t\u003cp\u003eThe company you work in has got a secret job to do. Just a few persons know what it is all\r\nabout. To keep a secret every programmer works on a small part of the project.\r\n\u003c/p\u003e\u003cp\u003e\r\nYour job is as follows. You are given a matrix of integer numbers with N rows and M columns.\r\nAlso two integer numbers A and B are given. Your task is to find a number of submatrices of\r\na given matrix with the sum of elements between A and B inclusively.\r\n\r\n\u003c/p\u003e\u003ch3\u003eInput\u003c/h3\u003e\r\n\u003cp\u003eThe first line contains two integer numbers N and M (1 ≤ N, M ≤ 250).\r\nAfter that matrix description follows. N lines with M numbers each. The last line contains two\r\ninteger numbers A and B (-10\u003csup\u003e9\u003c/sup\u003e ≤ A ≤ B ≤ 10\u003csup\u003e9\u003c/sup\u003e). All numbers separated with spaces.\r\nIt is guaranteed that for every submatrix the absolute value of the sum of its elements will not exceed 10\u003csup\u003e9\u003c/sup\u003e.\r\n\r\n\u003c/p\u003e\u003ch3\u003eOutput\u003c/h3\u003e\r\n\u003cp\u003eWrite to the output the number of submatrices of a given matrix with sum of their elements between A and B inclusively.\r\n\r\n\u003c/p\u003e\u003ch3\u003eExample\u003c/h3\u003e\r\n\r\n\u003cdiv\u003e\u003ctable class\u003d\"vjudge_sample\"\u003e\n\u003cthead\u003e\n \u003ctr\u003e\n \u003cth\u003eInput\u003c/th\u003e\n \u003cth\u003eOutput\u003c/th\u003e\n \u003c/tr\u003e\n\u003c/thead\u003e\n\u003ctbody\u003e\n \u003ctr\u003e\n \u003ctd\u003e\u003cpre\u003e3 3\r\n1 0 0\r\n0 1 0\r\n0 0 1\r\n1 3\r\n\r\n\u003c/pre\u003e\u003c/td\u003e\n \u003ctd\u003e\u003cpre\u003e26\r\n\u003c/pre\u003e\u003c/td\u003e\n \u003c/tr\u003e\n\u003c/tbody\u003e\n\u003c/table\u003e\n\u003c/div\u003e\r\n\n\u003c/div\u003e"}}]}