>>> map(int,‘0‘)[0]>>> int(‘-1‘)-1>>> map(int, l[1])Traceback (most recent call last):  File "<stdin>", line 1, in <module>ValueError: invalid literal for int() with base 10: ‘.‘>>> map(int, ‘-1‘)Traceback (most recent call last):  File "<stdin>", line 1, in <module>ValueError: invalid literal for int() with base 10: ‘-‘>>> map(int, ‘1.0‘)Traceback (most recent call last):  File "<stdin>", line 1, in <module>ValueError: invalid literal for int() with base 10: ‘.‘>>> int(‘1.0‘)Traceback (most recent call last):  File "<stdin>", line 1, in <module>ValueError: invalid literal for int() with base 10: ‘1.0‘>>> map(int, [‘1.0‘])Traceback (most recent call last):  File "<stdin>", line 1, in <module>ValueError: invalid literal for int() with base 10: ‘1.0‘>>> map(int, [‘-1‘])[-1]