735 B | 735 chars
import sys
from math import sqrt, pi, sin, factorial, ceil, floor
from decimal import Decimal
BLANK = " "
# inp = input
inp = lambda : sys.stdin.readline()[:-1].strip()
mii = lambda x = BLANK : [*map(int,inp().split(x))]
mfi = lambda x = BLANK : [*map(float,inp().split(x))]
ii = lambda : int(inp())
fi = lambda : float(inp())
p = print
def f(s):
ret = ""
for i in s:
if 'a' <= i <= 'z':
ret += i
else:
ret += " "
return ret
def solve():
n, m = mii()
a = sorted(mii(), reverse=True)
b = sorted(mii(), reverse=True)
ans = 0
for i in range(min(n, m)):
ans += a[i] * b[i]
p(min(n, m), ans)
if __name__ == "__main__":
tc = 1
for t in range(1, tc+1):
ret = solve()