The distance between A and B is 22.4 kilometers. There is a parade starting from A and moving towards B at a constant speed; when the tail of the parade leaves A, A and B start from A and B respectively at the same time. B walks towards A; A rides a bicycle to chase to the head of the team first, and immediately rides to the tail of the team after catching up with the head of the team, and then immediately chases to the head of the team after reaching the tail of the team, and immediately rides to the tail of the team after catching up with the head of the team... When When A catches up with the head of the team for the fifth time, he meets B at a distance of 5.6 kilometers from point B; How many kilometers are there.
A、B两地相距22.4千米．有一支游行队伍从A出发，向B匀速前进；当游行队伍队尾离开A时，甲、乙两人分别从A、B两地同时出发．乙向A步行；甲骑车先追向队头，追上队头后又立即骑向队尾，到达队尾后再立即追向队头，追上队头后又立即骑向队尾…当甲第5次追上队头时恰与乙相遇在距B地5.6千米处；当甲第7次追上队头时，甲恰好第一次到达B地，那么此时乙距A地还有多少千米．
<gadget id="calculator">5.6 / 2</gadget>
<output>2.8</output>

<gadget id="calculator">2.8 * 6</gadget>
<output>16.8</output>

<gadget id="calculator">22.4 - 16.8</gadget>
<output>5.6</output>

<gadget id="calculator">7 * 5.6</gadget>
<output>39.2</output>

<gadget id="calculator">5.6 - 2.8</gadget>
<output>2.8</output>

<gadget id="calculator">39.2 + 16.8</gadget>
<output>56</output>

<gadget id="calculator">56 / 7</gadget>
<output>8</output>

<gadget id="calculator">22.4 - 8</gadget>
<output>14.4</output>

<result>14.4</result>