xs1, xs2, xs3 = input("three:").split()
x1=int(xs1)
x2=int(xs2)
x3=int(xs3)
if x1 > x2 and x1 > x3:
    print(x1)
else:
    if x2 > x1 and x2 > x3:
        print(x2)
    else:
        print(x3)