def s12(value):
    return -(value & 0b10000000) | (value & 0b01111111)

def toHex(s):
    lst = []
    for ch in s:
        hv = hex(ord(ch)).replace('0x', '')
        if len(hv) == 1:
            hv = '0'+hv
        lst.append(hv)

    return reduce(lambda x,y:x+y, lst)

from pcapfile import savefile
testcap = open('mouse.pcap')
pkts = savefile.load_savefile(testcap, verbose=False).packets
for i in range(0,len(pkts)):
    pkts[i] = toHex(pkts[i].raw())[-12:-4]

x = 0
y = 0

out = ""

for i in range(0,760):
    x = x + s12(int(pkts[i][2:4],16))
    y = y + s12(int(pkts[i][4:6],16))
    out = out + str((x,y))+("L" if s12(int(pkts[i][0:2],16)) == 1 else ("R" if s12(int(pkts[i][0:2],16)) == 2 else ""))+"\n"

open("out","w").write(out)