global variable are treated local

at the first line i declared a variable with a boolean value false i have a loop which has two if conditions one which checks for the boolean value , if false then it do it's work then re-declare it as true , then another if condition check if it's true and do it's work , the problem is when it re-declares the variable it appears to be only re-declared locally as the second if does't meet the condition and the loop keeps running and meeting the first if

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Again()

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