{"raw_statement":[{"iden":"problem statement","content":"There are some animals in a garden. Each of them is a crane with two legs or a turtle with four legs.\nTakahashi says: \"there are $X$ animals in total in the garden, and they have $Y$ legs in total.\" Determine whether there is a combination of numbers of cranes and turtles in which this statement is correct."},{"iden":"constraints","content":"*   $1 \\leq X \\leq 100$\n*   $1 \\leq Y \\leq 100$\n*   All values in input are integers."},{"iden":"input","content":"Input is given from Standard Input in the following format:\n\n$X$ $Y$"},{"iden":"sample input 1","content":"3 8"},{"iden":"sample output 1","content":"Yes\n\nThe statement \"there are $3$ animals in total in the garden, and they have $8$ legs in total\" is correct if there are two cranes and one turtle. Thus, there is a combination of numbers of cranes and turtles in which the statement is correct."},{"iden":"sample input 2","content":"2 100"},{"iden":"sample output 2","content":"No\n\nThere is no combination of numbers of cranes and turtles in which this statement is correct."},{"iden":"sample input 3","content":"1 2"},{"iden":"sample output 3","content":"Yes\n\nWe also consider the case in which there are only cranes or only turtles."}],"translated_statement":null,"sample_group":[],"show_order":["default"],"formal_statement":null,"simple_statement":null,"has_page_source":true}