问题遇到的现象和发生背景
c1,c2,c3,c4=input().split()
ave=(c1+c2+c3+c4)/4.0
cmax=max(c1,c2,c3,c4)
cmin=min(c1,c2,c3,c4)
print("The average is:","%.2f"%ave)
print("max=%d min=%d"&(cmax,cmin))
print("max=",cmax,"min=",cmin)
c1,c2,c3,c4=input().split()
ave=(c1+c2+c3+c4)/4.0
cmax=max(c1,c2,c3,c4)
cmin=min(c1,c2,c3,c4)
print("The average is:","%.2f"%ave)
print("max=%d min=%d"&(cmax,cmin))
print("max=",cmax,"min=",cmin)