one-file-projects/looknsay.py

def looknsay(n):
    s = str(n)
    sn = ""
    q = 0
    c = None
    for x in s:
        if c != x:
            if q > 0:
                sn += "%d%s" % (q,c)
            q = 1
            c = x
        else:
            q+=1
    if q > 0:
        sn += "%d%s" % (q,c)
    return int(sn)

if __name__ == "__main__":
    c = 1
    print(c)
    for i in range(5):
        c = looknsay(c)
        print(c)