B"Vasya works as a watchman in the gallery. Unfortunately, one of the most expensive paintings was stolen while he was on duty. He doesn't want to be fired, so he has to quickly restore the painting. He remembers some facts about it. Help Vasya find out the number of distinct squares the satisfy all the conditions above. Note, that this number may be equal to 0, meaning Vasya remembers something wrong. Two squares are considered to be different, if there exists a cell that contains two different integers in different squares. The first line of the input contains five integers n, a, b, c and d (1 xe2 x80 x89 xe2 x89 xa4 xe2 x80 x89n xe2 x80 x89 xe2 x89 xa4 xe2 x80 x89100 xe2 x80 x89000, 1 xe2 x80 x89 xe2 x89 xa4 xe2 x80 x89a, xe2 x80 x89b, xe2 x80 x89c, xe2 x80 x89d xe2 x80 x89 xe2 x89 xa4 xe2 x80 x89n) -- maximum possible value of an integer in the cell and four integers that Vasya remembers. Print one integer -- the number of distinct valid squares. Below are all the possible paintings for the first sample. In the second sample, only paintings displayed below satisfy all the rules. "...