{"trustable":false,"sections":[{"title":"","value":{"format":"PLAIN","content":"A square number is an integer number whose square root is also an integer. For example 1, 4, 81 are some square numbers. Given two numbers a and b you will have to find out how many square numbers are there between a and b (inclusive)."}},{"title":"Input","value":{"format":"PLAIN","content":"The input file contains at most 201 lines of inputs. Each line contains two integers a and b (0\u003ca≤b≤100000). Input is terminated by a line containing two zeroes. This line should not be processed."}},{"title":"Output","value":{"format":"PLAIN","content":"For each line of input produce one line of output. This line contains an integer which denotes how many square numbers are there between a and b (inclusive)."}},{"title":"Sample Input","value":{"format":"PLAIN","content":"1 4\n\n1 10\n\n0 0"}},{"title":"Sample Output","value":{"format":"PLAIN","content":"2\n\n3"}}]}