import re

r = re.compile(r'\w*(\d+)\w*')

def sort_data(data):
    data_list = data.split()
    data_list.sort(key=r.findall)
    return ' '.join(data_list)
    
print(sort_data('is2 Thi1s T4est 3a'))
print(sort_data('4of Fo1r pe6ople g3ood th5e the2'))