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Montu and Kislu are very good friend. They are always playing together. One day they are playing very interesting game which name is “Calculate Distance” they have another friend his name is Bishu. In this game Montu stands in one point and Kislu stands in another point corresponding to the X and Y axes of two points from the plan, for Example P1(x1, y1) and P2(x2, y2). Bishu calculating the distance between his two friends. Showing the final result decimal places after the comma, according to this Formula sqrt=(pow((x2-x1),2)+pow((y2-y1),2)) INPUT: The first line contains a positive integer T (T <= 100), number of test case. In the following T lines, you will give four floating numbers like x1, y1, x2 and y2. OUTPUT: For each case print the case number, and print the value of distance between themes. Sample Input...................................Output 3 1.0 7.0 5.0 9.0.................Case 1: 4.4721 0.02 0.001 0.0 0.2............. Case 2: 0.2000 2.0 4.0 1.0 3.0.................. Case 3: 1.4142
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