Fans preparing for an international friendly between Romania and Spain may have needed their calculators handy.

对于打算观看罗马尼亚和西班牙之间一场国际友谊赛的球迷们来说，手边可能必须得备上计算器了。

In an effort to combat Romania's poor school dropout¹ rate and boost children's interest in math, the country's football federation² has kickstarted a novel initiative - having players swap³ their standard kit⁴ numbers for mathematical equations.

为了挽救不断走高的辍学率、同时激发青少年学习数学的兴趣，罗马尼亚足球协会发起了一项创意——让球员们把标准的球衣编号换成数学题。

The recently devised concept for the squad⁵ numbers, printed on the back of training tops ahead of the clash against La Roja, was reinforced by a video shown at the Cluj Arena⁶ 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。

"Football and mathematics are not mutually exclusive," said Romandian Football Federation president Razvan Burleanu. "We must look at sports and education as not only complementary but fundamental elements integrated in the training and perfection of children."

罗马尼亚足球协会主席拉兹万表示：“足球和数学之间并不排斥，体育和教育不仅可以互补，还可以成为进行儿童培养、完善儿童教育的重要因素。”

The friendly ended 0-0, which was part of their preparations for Euro 2016, where they face France, Switzerland and Albania in Group A.

该友谊赛是2016欧洲杯的热身赛，最终以0比0结束。本届欧洲杯，罗马尼亚与法国、瑞士及阿尔巴尼亚都分在A组。