Python Assignment

zzzhy666
fare.txt

YYC,YYC,0 YYC,YEG,120 YYC,YUL,300 YYC,YOW,250 YYC,YQR,200 YYC,YXE,150 YYC,YYZ,225 YYC,YVR,99 YYC,YYJ,125 YYC,YWG,165 YEG,YYC,130 YEG,YEG,0 YEG,YUL,200 YEG,YOW,250 YEG,YQR,180 YEG,YXE,120 YEG,YYZ,220 YEG,YVR,200 YEG,YYJ,270 YEG,YWG,280 YUL,YYC,250 YUL,YEG,160 YUL,YUL,0 YUL,YOW,300 YUL,YQR,280 YUL,YXE,270 YUL,YYZ,150 YUL,YVR,140 YUL,YYJ,150 YUL,YWG,250 YOW,YYC,240 YOW,YEG,210 YOW,YUL,280 YOW,YOW,0 YOW,YQR,200 YOW,YXE,230 YOW,YYZ,270 YOW,YVR,240 YOW,YYJ,210 YOW,YWG,200 YQR,YYC,210 YQR,YEG,210 YQR,YUL,300 YQR,YOW,180 YQR,YQR,0 YQR,YXE,300 YQR,YYZ,230 YQR,YVR,190 YQR,YYJ,200 YQR,YWG,170 YXE,YYC,170 YXE,YEG,200 YXE,YUL,310 YXE,YOW,250 YXE,YQR,280 YXE,YXE,0 YXE,YYZ,190 YXE,YVR,180 YXE,YYJ,265 YXE,YWG,129 YYZ,YYC,200 YYZ,YEG,200 YYZ,YUL,140 YYZ,YOW,260 YYZ,YQR,240 YYZ,YXE,160 YYZ,YYZ,0 YYZ,YVR,220 YYZ,YYJ,230 YYZ,YWG,200 YVR,YYC,130 YVR,YEG,230 YVR,YUL,240 YVR,YOW,230 YVR,YQR,200 YVR,YXE,200 YVR,YYZ,260 YVR,YVR,0 YVR,YYJ,270 YVR,YWG,199 YYJ,YYC,140 YYJ,YEG,220 YYJ,YUL,125 YYJ,YOW,260 YYJ,YQR,180 YYJ,YXE,220 YYJ,YYZ,200 YYJ,YVR,260 YYJ,YYJ,0 YYJ,YWG,200 YWG,YYC,180 YWG,YEG,250 YWG,YUL,100 YWG,YOW,120 YWG,YQR,160 YWG,YXE,140 YWG,YYZ,210 YWG,YVR,150 YWG,YYJ,170 YWG,YWG,0