import sys.stdin
exit()
d = {'1':4; '3':4}
d = {'1':4, '3':4}
d
for k, a in enumerate(d):
	print(k,a)
for k, a in enumerate(d.args):
 print(k,a)
for k in d:
	print(k,a)
for k in d:
	print(k)
exit()
help(lst()
)
help(list())
exit()
l = [(1, 3), (1, 4), (2, 5)]
s = set()
for pos, pig in l:
	if pos not in s:
		s[pos] = []
	s[pos].append(pig)
s = dict()
for pos, pig in l:
	if pos not in s:
		s[pos] = []
	s[pos].append(pig)
s
s[1]
for i in s:
	print(i, type(i))
s = dict()
for pos, pig in l:
	if pos not in s:
		s[pos] = []
	s[pos].append(pig)
s
s.pop()
s.popitem()
l = [1, 2]
x, y = l
x
y
exit()
