"4/1" + a.substr(6, 6) + "2/1" + a.substr(12, 8) +
"/" + a.substr(20, 4) + "1" + a.substr(24, 4) +
"/" + a.substr(28, 8) + "1/2" + a.substr(36, 6) +
"4/1" + a.substr(6, 6) + "2/1" + a.substr(12, 8) +
"/" + a.substr(20, 4) + "1" + a.substr(24, 4) +
"/" + a.substr(28, 8) + "1/2" + a.substr(36, 6) +