         Depot1   Depot2   Depot3   Depot4        A        B        C        D
Depot1        0       31       15       26       24       29       26       36
Depot2       31        0       45       15       10       19       47       12
Depot3       15       45        0       40       38       42       27       50
Depot4       26       15       40        0       19        5       35       26
A            24       10       38       19        0       24       45       13
B            29       19       42        5       24        0       34       30
C            26       47       27       35       45       34        0       57
D            36       12       50       26       13       30       57        0