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## itoabaseprog
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### Instructions
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Write a program that:
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- converts a number in base 10 into the number in the specified base
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- receives two parameters:
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- the first is the value
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- the second is the base
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The base is expressed as an `int`, from 2 to 16. The characters comprising
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the base are the digits from 0 to 9, followed by uppercase letters from A to F.
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For example, the base `4` would be the equivalent of "0123" and the base `16` would be the equivalent of "0123456789ABCDEF".
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If the value is negative, the resulting `string` has to be preceded with a
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minus sign `-`.
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### Expected output
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```console
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student@ubuntu:~/piscine-go/itoabaseprog$ go build
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student@ubuntu:~/piscine-go/itoabaseprog$ ./itoabaseprog 15 16
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F
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student@ubuntu:~/piscine-go/itoabaseprog$ ./itoabaseprog 255 2
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11111111
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student@ubuntu:~/piscine-go/itoabaseprog$ ./itoabaseprog -4 2 | cat -e
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-100$
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student@ubuntu:~/piscine-go/itoabaseprog$ ./itoabaseprog -df sdf
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The value "-df" can not be converted to an int
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student@ubuntu:~/piscine-go/itoabaseprog$ ./itoabaseprog 23 ew | cat -e
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The value "ew" can not be converted to an int$
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student@ubuntu:~/piscine-go/itoabaseprog$ ./itoabaseprog 4 23
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student@ubuntu:~/piscine-go/itoabaseprog$ 323 12
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22B
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student@ubuntu:~/piscine-go/itoabaseprog$
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```
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