import random
r = random.randint(1, 10)
s=[]
s.sort()
result=[]
t=0
x=1

while t<8:
    s.append(r)
    r=random.randint(1, 10)
    t+=1

s.sort()
t=0

for a in s:
    t+=x
    while t<len(s):
        k = abs(a-s[t])
        result.append(k)
        t+=1
    x+=1
    t=0

for j in result:
    if k < j:
        print('(' + str(a) + ', ' + str(s[t]) + ')')