integers = [1, 2, 3, 4]
stringed = ''.join(map(str,new))
# stringed = "1234"
# Python code to convert list of
# string into sorted list of integer
# List initialization
list_int = [1, 12, 15, 21, 131]
# mapping
list_string = map(str, list_int)
# Printing sorted list of integers
print(list(list_string))