# aa2zz_under676.py

# aa2zz_under676.py

abc = [chr(z) for z in range(ord('a'),ord('z')+1)]

def int2abc(z):
    return abc[z/26]+abc[z%26]

def abc2int(z):
    return abc.index(z[0])*26+abc.index(z[1])

for z in [0,1,100,200,300,400,500,600,26*25+25]:
    a = int2abc(z)
    b = abc2int(a)
    print z, a, b