python 計算s= 12+ 22+ 32 +... + (10*n+2)

計算 s= 12+ 22+ 32 +… + (10*n+2)

參考代碼

@author: Catwang
"""
def main():
    sum = 0
    n = int(input('n='))
    for x in range(n):
        sum +=10* (x +1)+2
    print(sum)

if __name__ == '__main__':
    main()
           

運作結果