The teacher asked the students to stand in a row of 11 people, but the students made a mistake and stood in a row of 17 people. As a result, there were 2 more people standing in the 7th row. If they stood in a row according to the teacher's request, how many rows should they stand in?
老师让同学们按11人一排站队，可同学们错站成了17人一排，结果站了7排还多出2人，如果按老师的要求站队，应站成几排？
<gadget id="calculator">17 * 7</gadget>
<output>119</output>

<gadget id="calculator">119 + 2</gadget>
<output>121</output>

<gadget id="calculator">121 / 11</gadget>
<output>11</output>

<result>11</result>