{"raw_statement":[{"iden":"problem statement","content":"As a token of his gratitude, Takahashi has decided to give his mother an integer sequence. The sequence $A$ needs to satisfy the conditions below:\n\n*   $A$ consists of integers between $X$ and $Y$ (inclusive).\n*   For each $1\\leq i \\leq |A|-1$, $A_{i+1}$ is a multiple of $A_i$ and strictly greater than $A_i$.\n\nFind the maximum possible length of the sequence."},{"iden":"constraints","content":"*   $1 \\leq X \\leq Y \\leq 10^{18}$\n*   All input values 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 20"},{"iden":"sample output 1","content":"3\n\nThe sequence $3,6,18$ satisfies the conditions."},{"iden":"sample input 2","content":"25 100"},{"iden":"sample output 2","content":"3"},{"iden":"sample input 3","content":"314159265 358979323846264338"},{"iden":"sample output 3","content":"31"}],"translated_statement":null,"sample_group":[],"show_order":["default"],"formal_statement":null,"simple_statement":null,"has_page_source":true}