a=[int(x) for x in open('17-345.txt')] 
 ans=[] 
 p=[] 
 for i in range(len(a)): 
     if a[ i]%100==52 : 
         p.append(a[ i]) 
 for i in range(0,len(a)-1): 
     if ((a[ i]<(max(p)-min(p)) and a[i+1]>=(max(p)-min(p))))or ((a[i+1]<((max(p)-min(p)) and a[ i]>=(max(p)-min(p))))): 
         ans.append(a[ i]+a[i+1]) 
 print(len(ans),max(ans))

 
 dif = max(p)-min(p) 
 for i in range(0,len(a)-1): 
     if (a[ i]< dif and a[i+1]>=dif) or (a[i+1]<dif and a[ i]>=dif): 
         ans.append(a[ i]+a[i+1]) 
 

 
 >>> print( False + False == 1 )  
 False 
 >>> print( True + False == 1 ) 
 True 
 >>> print( True + True == 1 ) 
 False