程序代码：

f=input().split()
a=[]
for i in f:
    j=int(i)
    a.append(j)
minn=2147483647
maxx=-2747483648
for i in a:
    if i>maxx:
        maxx=i
    if i<minn:
        minn=i
for i in a:
    if i==maxx:
        print(minn,end=" ")
    elif i==minn:
        print(maxx,end=" ")
    else:
        print(i,end=" ")