I- C¸c sè liÖu ®Çu vµo:
(a-1)
(a-2)
(a-3)
(a-4)
(a-5)
(a-6)
(a-7)
(a-8)
(a-9)
(a-10)
(a-11)
(a-12)
(hoÆc §êng s¾t 1435 + 2 x 0.75 m)
(b-1)
(b-2)
(b-3)
(c-1)
(c-2)
(e-1)
(e-2)
(e-4)
(e-5)
(e-6)
( i-1)
(i-2)
(i-3)
(1-4)
(k-1)
(k-2)