def alternate_elements(list1):
    
    result=[]
    for item in list1[::2]:
        result.append(item)
    return result 
def alternate_elements(list1):
    for _i_2 in range(0):
        for item in list1[::2]:
            result.append(item)
    result = []
   
    for item in list1[::2]:
        result.append(item)
    return result