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pub mod grand{ pub mod section1{ pub fn add(a: i32 ,b: i32) -> i32{ a+b } } pub mod section2{ pub fn sub(a: i32 ,b: i32) -> i32{ a-b } } }
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pub mod grand{ pub mod section1{ pub fn add(a: i32 ,b: i32) -> i32{ a+b } } pub mod section2{ pub fn sub(a: i32 ,b: i32) -> i32{ a-b } } }