if ch is present in both of them and remaining length is equal to remaining lcs length then add ch in sub - sequenece
if ( chr ( ch ) == str2 [ j ] and dp [ i ] [ j ] == lcslen - currlcs ) : NEW_LINE data [ currlcs ] = chr ( ch ) NEW_LINE printAll ( str1 , str2 , len1 , len2 , data , i + 1 , j + 1 , currlcs + 1 ) NEW_LINE done = True NEW_LINE break NEW_LINE