jiujian = {'a': 2,'b':2,'c':2,'d':3,'e':3,'f':3,'g':4,'h':4,'i':4,\ 'j':5,'k':5,'l':5,'m':6,'n':6,'o':6,'p':7,'q':7,'r':7,'s':7,'t':8,\ 'u':8,'v':8,'w':9,'x':9,'y':9,'z':9} s = input() res = [] for i in s: if i in jiujian: res.append(jiujian[i]) else: if ord('0') <= ord...