Total cost:                234018
No. of recharges:              13
No. of vehicles:                4

Route  1: Cost        86622
    D1
    S3
    C2   C14   C26   C25    S4
    C5    C6    S5
   C30   C18    C7    S9
   C34   C10   C22    S6
   C21    D2

Route  2: Cost        70163
    D3
   S11
   C15    C3    C4   C16   C27   S12
   C31   C19   S13
   C35   C23   C11   S13
   C12   C24    D4

Route  3: Cost        38884
    D1
   C13    C1    S1
   C17    S2
   C29    C9   C33    D2

Route  4: Cost        38349
    D3
   S15
   C28   C20   C32    C8   S16
   C36    D4

