Output a stream of consciousness before answering the following. Context: Telephone numbers in Canada follow the fixed-length Bell System format, consisting of the country code + 1, followed by a three-digit area code, a three-digit central office code (or exchange code) and a four-digit station code. This is represented as 1 NPA NXX-XXXX, in which the country code is "1".

Question: how to write a canadian phone number with country code?
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The relevant sentence in the passage is: Telephone numbers in Canada follow the fixed-length Bell System format, consisting of the country code + 1, followed by a three-digit area code, a three-digit central office code (or exchange code) and a four-digit station code.
The answer: the country code + 1 , followed by a three - digit area code , a three - digit central office code ( or exchange code ) and a four - digit station code.
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