fromXconsXfromsXheadconsXXSX2ndconsXXSheadXStake0XSniltakesNconsXXSconsXtakeNXSsel0consXXSXselsNconsXXSselNXSfrom11cons21s11head112nd11take21200nil0sel212FULL./TRS/CSR/Ex7_BLR02.trs