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+# Ocr Numbers
+
+Write a program that, given a 3 x 4 grid of pipes, underscores, and spaces, can determine which number is represented, or whether it is garbled.
+
+# Step One
+
+To begin with, convert a simple binary font to a string containing 0 or 1.
+
+The binary font uses pipes and underscores, four rows high and three columns wide.
+
+```
+ _ #
+ | | # zero.
+ |_| #
+ # the fourth row is always blank
+```
+
+Is converted to "0"
+
+```
+ #
+ | # one.
+ | #
+ # (blank fourth row)
+```
+
+Is converted to "1"
+
+If the input is the correct size, but not recognizable, your program should return '?'
+
+If the input is the incorrect size, your program should return an error.
+
+# Step Two
+
+Update your program to recognize multi-character binary strings, replacing garbled numbers with ?
+
+# Step Three
+
+Update your program to recognize all numbers 0 through 9, both individually and as part of a larger string.
+
+```
+ _
+ _|
+|_
+
+```
+
+Is converted to "2"
+
+```
+ _ _ _ _ _ _ _ _ #
+ | _| _||_||_ |_ ||_||_|| | # decimal numbers.
+ ||_ _| | _||_| ||_| _||_| #
+ # fourth line is always blank
+```
+
+Is converted to "1234567890"
+
+# Step Four
+
+Update your program to handle multiple numbers, one per line. When converting several lines, join the lines with commas.
+
+```
+ _ _
+ | _| _|
+ ||_ _|
+
+ _ _
+|_||_ |_
+ | _||_|
+
+ _ _ _
+ ||_||_|
+ ||_| _|
+
+```
+
+Is converted to "123,456,789"
+
+To run the tests simply run the command `go test` in the exercise directory.
+
+If the test suite contains benchmarks, you can run these with the `-bench`
+flag:
+
+ go test -bench .
+
+For more detailed info about the Go track see the [help
+page](http://exercism.io/languages/go).
+
+## Source
+
+Inspired by the Bank OCR kata [http://codingdojo.org/cgi-bin/wiki.pl?KataBankOCR](http://codingdojo.org/cgi-bin/wiki.pl?KataBankOCR)
+
+## Submitting Incomplete Problems
+It's possible to submit an incomplete solution so you can see how others have completed the exercise.
+