def perfect_squares(a, b):
    
    lists=[]
    for i in range (a,b+1):
        j = 1;
        while j*j <= i:
            if j*j == i:
                 lists.append(i)  
            j = j+1
        i = i+1
    return lists
def perfect_squares(a, b):
    lists = []
    for i in range(a, b + 1):
        j = 1
        while i >= j * j:
           
            if j * j == i:
                lists.append(i)
            j = j + 1
        i = i + 1
    return lists