# 接收男生跳远成绩
n = input().split()
# 接收女生跳远成绩
m = input().split()
# 类型转换
c = 0
d = 0
x = len(n) - 1
y = len(m) - 1
# 男生平均成绩
for i in range(0, x):
    n[i] = int(n[i])
    c += n[i]
print('%.1f' % (c / x), end=' ')
# 女生平均成绩
for j in range(0, y):
    m[j] = int(m[j])
    d += m[j]
print('%.1f' % (d / y))
/**************************************************************
	Problem: 1319
	User: linzihang
	Language: Python
	Result: Accepted
	Time:97 ms
	Memory:34480 kb
****************************************************************/