case 20101:
    case 20102:
    case 20103:
        return 1;
    case 20104:
    case 20105:
    case 20106:
        return 2;
/*
    case 20107:
    case 20108:
    case 20109:
    case 20110:
    case 20111:
    case 20112:
    case 20113:
    case 20114:
    case 20115:
    case 20116:
    case 20117:
    case 20118:
    case 20120:
    case 20121:
    case 20122:
    case 20123:
    case 20124:
    case 20125:
*/
case 20107 ... 20125:
        return 3;
/*
    case 20119:
    case 20219:
    case 20220:
    case 20221:
    case 20222:
    case 20223:
    case 20224:
    case 20225:
    case 20226:
    case 20227:
    case 20228:
    case 20229:
    case 20230:
    case 20231:
    case 20232:
*/
case 20119 ... 20232:
        return 2;