{"raw_statement":[{"iden":"statement","content":"While testing your gravity vehicle for Science Olympiad, you have decided to test the vehicle both on Earth, and on Mars. You want to know the gravitational constant of the planet that you are currently testing the vehicle on. You are given that the gravitational constant on Earth is 9.807 m/s^2 and the gravitational constant on Mars is 3.711 m/s^2. \n\nThe only line of input contains a single string _s_: either \"EARTH\" or \"MARS\", which indicates the planet that you are currently testing the gravity vehicle on.\n\nOutput a single decimal number: the gravitational constant of the planet that you are testing the vehicle on.\n\n"},{"iden":"input","content":"The only line of input contains a single string _s_: either \"EARTH\" or \"MARS\", which indicates the planet that you are currently testing the gravity vehicle on."},{"iden":"output","content":"Output a single decimal number: the gravitational constant of the planet that you are testing the vehicle on."},{"iden":"examples","content":"InputEARTH\nOutput9.807\nInputMARS\nOutput3.711\n"}],"translated_statement":null,"sample_group":[],"show_order":[],"formal_statement":"**Definitions**  \nLet $ s \\in \\{\\text{\"EARTH\"}, \\text{\"MARS\"}\\} $ be the input string indicating the planet.\n\n**Constraints**  \n$ s \\in \\{\\text{\"EARTH\"}, \\text{\"MARS\"}\\} $\n\n**Objective**  \nOutput the gravitational constant $ g $ defined as:  \n$$\ng = \n\\begin{cases}\n9.807 & \\text{if } s = \\text{\"EARTH\"} \\\\\n3.711 & \\text{if } s = \\text{\"MARS\"}\n\\end{cases}\n$$","simple_statement":"If the input is \"EARTH\", output 9.807. If the input is \"MARS\", output 3.711.","has_page_source":false}