Slicing Bagels

Barb found a Panera Bagel store in Sebring.  She loves their cinnamon bagels.  They sell them by the baker’s dozen (which is actually 13 bagels). The first time she went there they were sold out of cinnamon bagels early in the morning.  The second time she went there she bought some bagels but she had to wait a long time in line.  Then she found a website where she could order the bagels the night before.  She could pay for the bagels online as well.  Then she could pick them up without having to wait in line to pay.  There was option to ask for the bagels to be sliced.  However, you had to check each bagel individually.  When Barb picked up her bagels the next day, it turned out she had ordered six bagels sliced and seven bagels unsliced.