43.Write a program to print all alphabets from a to z. - using while loop 
 SOL:
 n=26
i=1
a={1:'a',2:'b',3:'c',4:'d',5:'e',6:'f',7:'g',8:'h',9:'i',10:'j',11:'k',12:'l',13:'m',14:'n',15:'o',16:'p',17:'q',18:'r',19:'s',20:'t',21:'u',22:'v',23:'w',24:'x',25:'y',26:'z'}
while i<=n:
  print(a[i])
  i=i+1
