- Boston A
- New York B
- Philadelphia C
- Cleveland D
- Cincinnati
- Columbus
- Pittsburgh
Richmond E
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- Atlanta F
- Birmingham
- Jacksonville
- Miami
- Nashville
- New Orleans
- Chicago G
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- St. Louis H
- Little Rock
- Louisville
- Memphis
- Minneapolis I
- Kansas City J
- Denver
- Oklahoma City
- Omaha
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- Dallas K
- El Paso
- Houston
- San Antonio
- San Francisco L
- Los Angeles
- Portland
- Salt Lake City
- Seattle
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