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pub mod grandSection{

    pub mod section1{
        
        pub fn add(input1:i32 , input2:i32) -> i32{
           input1 + input2
        }
    }

    pub mod section2{

       pub fn sub(input1:i32 , input2:i32) -> i32{
            input1 - input2
        }
    }   
}

//pub use grandSection::section1::add();





//liscence = "MIT"