The recently devised concept for the squad numbers, printed on the back of training tops ahead of the clash against La Roja, was reinforced by a video shown at the Cluj Arena describing the measure.
根据这项最新举措，在对阵西班牙队之前的集训中，球员们背后的号码都被换成了这样的公式。罗马尼亚克鲁日体育场的大屏幕上也播放了相关视频，进一步推广该措施。
The answer to the sum on the back of each player's shirt reveals their squad number.
公式的运算结果即为相应的球员号码。
