a,b,c=map(int,input().split()) d=[] x=0 for i in range(1,a+1): for j in range(1,b+1): for k in range(1,c+1): e=i+j+k d.append(e) for i in range(a+b+c): y=d.count(d[i]) if y>x: x=y z=d[i] print(z)