         Depot1   Depot2   Depot3   Depot4        A        B        C        D
Depot1        0       22       15       41       42       41       55       55
Depot2       22        0       34       35       51       35       60       54
Depot3       15       34        0       40       31       40       45       48
Depot4       41       35       40        0       32        0       32       22
A            42       51       31       32        0       32       15       24
B            41       35       40        0       32        0       32       22
C            55       60       45       32       15       32        0       15
D            55       54       48       22       24       22       15        0