There is a special calculator that has only two keys (+1) and (*2). When you press one of the keys the calculator will immediately display the calculation result. For example, if the original data of the calculator is 9, when you press (+1), it will display 10, and then press (*2), it will display 20. If the initial value of this computer is 1, if you want to use it to get 200, how many times should you press this number at least? How many
有种特别的计算器它只有两个按键(+1)和(*2)．当你按下其中一个键计算器马上会显示运算结果．例如若计算器原有数据为9，当你按下(+1)时就会显示为10，再按下(*2)时就会显示20．如果此计算机初始值为1，要用他得到200，这个数至少要按键多少次？多少
<result>9</result>