to store answer
ans = " " NEW_LINE if ( d != 10 ) : NEW_LINE INDENT ans += str ( d ) NEW_LINE for i in range ( 1 , n ) : NEW_LINE INDENT ans += '0' NEW_LINE DEDENT DEDENT else : NEW_LINE INDENT if ( n == 1 ) : NEW_LINE INDENT ans += " Impossible " NEW_LINE DEDENT else : NEW_LINE INDENT ans += '1' NEW_LINE for i in range ( 1 , n ) : NEW_LINE INDENT ans += '0' NEW_LINE DEDENT DEDENT DEDENT return ans NEW_LINE