write some function with logical sign-ou will provide your solution to the Data Lab by

editing the collection of functions in this source file.



CODING RULES:



　Replace the "return" statement in each function with one

　or more lines of C code that implements the function. Your code

　must conform to the following style:



　int Funct(arg1, arg2, ...) {

　　　/* brief descr iption of how your implementation works*/

　　　int var1 = Expr1

　　　...

　　　int varM = ExprM



　　　varJ = ExprJ

　　　...

　　　varN = ExprN

　　　return ExprR

　}



　Each "Expr" is an expression using ONLY the following:

　1. Integer constants 0 through 255 (0xFF), inclusive. You are

　　　not allowed to use big constants such as 0xffffffff.

　2. Function arguments and local variables (no global variables).

　3. Unary integer operations ! ~

　4. Binary integer operations & ^ |+ << >>

　　

　Some of the problems restrict the set of allowed operators even further.

　Each "Expr" may consist of multiple