题解 | #尼科彻斯定理#

# -*-coding:utf-8-*-
while True:
    try:
        input_m = input()
        int_num =int(input_m)
        fist_js = int_num**2-int_num+1

        for i in range(0,int_num):
            if i == int_num-1:
                print((str(fist_js+2*i)))
            else:
                print((str(fist_js+2*i)),end="+")


    except:
        break