Table 2.71: TABLE 29 number of sandwiches sold
5 6 8 4 3 7
6 0 3 2 3 4
9 1 3 8 7 8
2 3 8 6 4 4
6 7 6 5 2 3
8 4 4 6 7 3
5 2 4 8 4 6
1 2 6 4 4