before and after37_	before and after36_	before and after35_
before and after33_	before and after32_	before and after31_
before and after30_	before and after29_	before and after28_
before and after24_	before and after23_	before and after22_
before and after21_	before and after20_	before and after18_
before and after19_	before and after17_	before and after16_
before and after15_	before and after14_	before and after12_
before and after13_	before and after11_	before and after10_
before and after9_	before and after8_	before and after6_
before and after7_	before and after5_	before and after2_
before and after1_	before and after3_	before and after4_
before and after34_	before and after37_	before and after36_
before and after35_	before and after33_	before and after32_
before and after31_	before and after30_	before and after29_
before and after28_	before and after24_	before and after23_
before and after22_	before and after21_	before and after20_
before and after18_	before and after19_	before and after17_
before and after16_	before and after15_	before and after14_
before and after12_	before and after13_	before and after11_
before and after10_	before and after9_	before and after8_
before and after6_	before and after7_	before and after5_
before and after2_	before and after1_	before and after3_
before and after4_