R,G,B=[int(i) for i in input().split()]
color=[R,G,B]

count=0
color=sorted(color)
min_color=color[0]
count+=min_color
for i,c in enumerate(color):
    color[i]-=min_color
    # print(i,c)
# print(color,count)
min_color=color[1]
min_index=1
max_color=color[2]
max_index=2
amari=max_color-min_color
print(max_color,min_color,amari)
if int(amari/2)>=min_color:
    count+=min_color
    color[max_index]-=(min_color*2+min_color)
    print(color,count)
    count+=int(color[max_index]/3)
else:
    count+=int(amari/2)
    color[max_index]-=(int(amari/2)*2+int(amari/2))
    color[min_index]-=int(amari/2)
    print(color,count)
    count+=int((int(color[max_index])+int(color[min_index]))/4)
print(count)