         Depot1   Depot2   Depot3   Depot4        A        B        C        D
Depot1        0       30       33       17       29       40       16       48
Depot2       30        0       28       14        8       17       38       19
Depot3       33       28        0       23       34       20       28       38
Depot4       17       14       23        0       17       24       25       32
A            29        8       34       17        0       25       40       22
B            40       17       20       24       25        0       42       20
C            16       38       28       25       40       42        0       56
D            48       19       38       32       22       20       56        0