{"raw_statement":[{"iden":"problem statement","content":"There are two buttons, one of size $A$ and one of size $B$.\nWhen you press a button of size $X$, you get $X$ coins and the size of that button decreases by $1$.\nYou will press a button twice. Here, you can press the same button twice, or press both buttons once.\nAt most how many coins can you get?"},{"iden":"constraints","content":"*   All values in input are integers.\n*   $3 \\leq A, B \\leq 20$"},{"iden":"input","content":"Input is given from Standard Input in the following format:\n\n$A$ $B$"},{"iden":"sample input 1","content":"5 3"},{"iden":"sample output 1","content":"9\n\nYou can get $5 + 4 = 9$ coins by pressing the button of size $5$ twice, and this is the maximum result."},{"iden":"sample input 2","content":"3 4"},{"iden":"sample output 2","content":"7"},{"iden":"sample input 3","content":"6 6"},{"iden":"sample output 3","content":"12"}],"translated_statement":null,"sample_group":[],"show_order":["default"],"formal_statement":null,"simple_statement":null,"has_page_source":true}