Kinsley One: A Four From Nine Numbers System

Procedure: Note the four street groups below

A.) s1-3, s4-6, s7-9
B.) s10-12, s13-15, s16-18
C.) s19-21, s22-24, s25-27
D.) s28-30, s31-33, s34-36
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When a number shows identify the group.  Do ...