s = 19107012
L = s Mod 10
T = s Mod 100
k = s Mod 10000

c = 3 * 10 ^ 8

f_small = c / (T * 10 ^ (-9))
F_BIG = c / (L * 10 ^ (-9))

wavelebgthchange = T * 10 ^ (-9) - L * 10 ^ (-9)
MsgBox wavelebgthchange


v = -c + c * F_BIG / f_small
MsgBox v