If length$\_$in$\_$days is $7,$ output 'Exactly one week'. Otherwise, output 'Not equal to one week'.

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Ex $1$: If the input is $7,$ then the output is:

Exactly one week

Ex $2$: If the input is $319,$ then the output is:

Not equal to one week length$\_$in$\_$days $=$ int$($input$())$

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