f04

代码说明：

  中国有句老话，“三天打鱼两天晒网”。假设渔民老张从1990年1月1日开始“三天打鱼两天晒网”，那么请你帮助推算出在以后某一天中，老张是在“打鱼”，还是在“晒网”。(Chinese saying goes, " in fits and starts network." The assumption that the fishermen Zhang from January 1, 1990 " in fits and starts network, then you figure out at a later day, Zhang is in the" fishing " , or" drying nets " .)