英语翻译流程：第一,请将每一组的λn用二进制转换为十进制求出μ；第二,把μ+54并除以26后所得的余数记为θ；第三,在下

Process: first, please put each group of lambda N binary to decimal conversion for u;
In second, the U + 54 and divided by 26the remainder after the recorded as theta;
Third, in the table below to find out by the corresponding letters, and fill in the table.