Cars A and B start from places A and B at the same time and drive toward each other, and meet for the first time at a distance of 38 kilometers from place A. After meeting for the first time, the two vehicles continue to move forward at the original speed and return immediately after reaching the opposite station. On the way back, the two vehicles met for the second time at a distance of 72 kilometers from A. Find the distance between A and B in kilometers?
甲、乙两车同时从A、B两地出发相向而行，第一次在距离A地38千米处相遇．第一次相遇后，两车仍以原速继续前进，并在到达对方站后立即返回．回程中两车又在距A地72千米处第二次相遇．求A、B两地相距多少千米？
<gadget id="calculator">38 * 3</gadget>
<output>114</output>

<gadget id="calculator">114 + 72</gadget>
<output>186</output>

<gadget id="calculator">186 / 2</gadget>
<output>93</output>

<result>93</result>