John    Roy    Micheal   Ron  ....... Smith
     A       B        B       A            C
     A       A        C       B            B
     C       A        A       B            B
     .       .        .       .            .
     .       .        .       .            .
     .       .        .       .            .
     F       G        E       A            G

A   B   C   D   E   F   G
 John    3  34  23  34   4   3   1
 Roy     5  23  12  3    5   39  46
 ...................................