120. Archipelago
time limit per test: 0.25
sec. Archipelago BerIslands consists of N islands that are vertices of equiangular and equilateral Ngon. Islands are clockwise numerated. Coordinates of island N_{1} are (x_{1}, y_{1}), and island N_{2} – (x_{2}, y_{2}). Your task is to find coordinates of all N islands. Input In the first line of input there are N, N_{1} and N_{2} (3£ N£ 150, 1£ N_{1},N_{2}£N, N_{1}¹N_{2}) separated by spaces. On the next two lines of input there are coordinates of island N_{1} and N_{2} (one pair per line) with accuracy 4 digits after decimal point. Each coordinate is more than 2000000 and less than 2000000. Output Write N lines with coordinates for every island. Write coordinates in order of island numeration. Write answer with 6 digits after decimal point. Sample Input 4 1 3 1.0000 0.0000 1.0000 2.0000 Sample Output 1.000000 0.000000 0.000000 1.000000 1.000000 2.000000 2.000000 1.000000  
