--- PASS: THESE LINES SHOULD MATCH ---
1234123412341234
1234-1234-1234-1234
1234-1234-12341234

--- FAIL: THESE LINES SHOULD NOT MATCH ---
000000000000000
1234.1234.1234.1234
hello
1234x2389-2987z9825
oops 1234-1234-1234-1234 oops
723589275829652362397532965
8174789