k=0 
 m=0 
 s='' 
 sm='' 
 f=open('C:/Users/qwe/Downloads/24-168.txt') 
 n=f.readline() 
 for i in  range(len(n)-1): 
     if n[ i]<=n[i+1]: 
         k+=1 
         s=s+n[ i] 
     else: 
         m=max(m,k) 
         k=0 
         if len(sm)<len(s): 
             sm=s 
         s='' 
 print(m,sm) 
 print('ABCDEFGHIJKLMNOPQRSTUVWXYZ')

 
 f=open('24-168.txt') 
 s=f.readline() 
 mlf=0 
 i=0 
 k=0 
 mk=0 
 s1='' 
 s2='' 
 while i<(len(s)-2): 
         if s[ i]<=s[i+1]<=s[i+2] and s[i+2]<=s[i+3]: 
             k=k+3 
             s1=s1+s[ i]+s[i+1]+s[i+2] 
             if k>mk: 
                 mk=k 
                 s2=s1 
             i=i+3 
         else: 
             i=i+1 
             k=0 
             s1='' 
 print(mk) 
 print(s2)