Introduction - If you have any usage issues, please Google them yourself
Output consists of two parts, first part is the wrong phone number, enter these numbers should be in accordance with the order to the original form of output. Wrong phone number in the output before the output "Error:", then the output of these numbers, if not the wrong phone number, the output "Not found.".
The second part is repeated telephone number in the phone book for each form more than once in any phone number, to generate one line of output. This line should be in standard form given phone number, followed by a space, a space followed by phone number in the phone book in the number of occurrences. Phone numbers of all duplicate output lines should be ascending numbers (small numbers first). Repeat the phone number in the output before the output of "Duplication", then in accordance with the format of the output number, if there is no duplication in the input telephone number, output: "Not found.".