nameSB = ['s', 'p', 'd', 'f']
valueSB = [2,6,10,14]
paulling = "1s2s2p3s3p4s3d4p5s4d5p6s4f5d6p7s5f6d7p"

z = int(input("digite o número Z do átomo.:"))
print("Sub-níveis.:\tElétrons.:")

while z > 0:

    for i in range(0, len(paulling), 2):
        subnivel = valueSB[nameSB.index(paulling[i+1])]
        print(paulling[i],"",paulling[i+1], "  \t\t", end='\t')
        if z > subnivel
            z-=subnivel
            print(subnivel)

        else
            print(z)