fail1 = open("synnid_1.txt", encoding="UTF-8")
fail2 = open("synnid_2.txt", encoding="UTF-8")
fail3 = open("synnid_3.txt", encoding="UTF-8")
fail4 = open("synnid_4.txt", encoding="UTF-8")


fail5 = open("surmad_1.txt", encoding="UTF-8")
fail6 = open("surmad_2.txt", encoding="UTF-8")
fail7 = open("surmad_3.txt", encoding="UTF-8")
fail8 = open("surmad_4.txt", encoding="UTF-8")

a1 = []

a2 = []

a3 = []

a4 = []

s1 = []

s2 = []

s3 = []

s4 = []


for arv in fail1:
    a1 = a1 + [arv.strip("\n")]
for arv in fail2:
    a2 = a2 + [arv.strip("\n")]
for arv in fail3:
    a3 = a3 + [arv.strip("\n")]
for arv in fail4:
    a4 = a4 + [arv.strip("\n")]

for arv in fail5:
    s1 = s1 + [arv.strip("\n")]
for arv in fail6:
    s2 = s2 + [arv.strip("\n")]
for arv in fail7:
    s3 = s3 + [arv.strip("\n")]
for arv in fail8:
    s4 = s4 + [arv.strip("\n")]

arve = len(a1)

while int(arve) > 0:
    k1 = int(a1[arve - 1]) - int(s1[arve - 1])
    arve = arve - 1