7 4 1 5 2 B B B B B B B B B B B B B BB BB BBBB BB BB BBBB BB BB B BBB B B B B BB BB BB BBB B BB B BB B B B B B B BB B BB BB B B BB B B B BB B B B BB B B B B B B B B B B B B B B B B B B B B B B B B BBB B B B B B B BBB B B B B B B B BBBB BB BB B B B B B B B B BB B B B B B B B B B B BB B BB B B B B BBB BB B B B B B B BBBB BB B B BB BB BB B B BB B BB B B B B BBBB B B BBBB B BBB B B B B BB BBB B BBB B B B B B B BB BBBB B B B B B B B BB B B B B BB B B B B BB BB B B B B BBB B B BB B B B B B B B B B B B B B B B B B BBBB BBBB B B B B B B B BB B B B B B B B BB B B B BB B BB B BB B B B B BB B B B B BBBB B B B B B B BBB B B B B BBB B B B B BBB BB B B B B B B B BB BB B B B B B B B B B B BB BBBB B B BBBB B B BBBB BBBB B B BBBB B B B BB B B B B BB B B B B BB B B B B B B BBBB B B B B B B BBBB B B B B B BBBB BBB B B B B B B BB B B B B BB BB B B B B B B B B B B B B BBBB B B BBBB BBBB B B B B B B B B B B BB B BB B BBBB B BB B BB B B BB B B B B B B B B B B BB BBB B B B B BBB B B B BB B B B B B B B B B B BB BB BBB B B B B BBB BB B B B B BB B B B BB B B B BB BBBB B B B B B B B B B B B B B B B B B B BB B B B B B B B B B B BB B B B B B B B BBBB BBBB B B B B B B B B BB BB BB B B B B B B B B B B B B B B BBBB B B BB B B BBBB BBB B B B B B BBB B B B B B B B B BBB B B B B B BBB BB B B BBBBB B B B B BB B BBBB B B BBB B B BBB B B B B B B BBB BBB B B B BBB B B BBB B B B B B B BBB BB B B BBBB B BB B B B B BBB B B B BBB B B B B B B BBB B BBB B B BBB B B B B B B B B B BB B B B BBB B BBB B B B B B B B B B B B B B BB B B B B BB B B B B B BBB B B BBBB B B B B B B BBB B B B B B B B B BB B B B B B B BB BBB B B B B B B BBB B B BBB B B B B B B BBB B BB B BB BB B B B BBB B BB B BBB B BBBB B B B BB B B B B B B B B BB B B B B B B B B B B B B B B B BBBB B B B B B B BB B B B B B B B B B B BBB B B BB BBBB B B B BBBB BB B B B B B BB B B B B B B B BB B B B B B BB B B B B BB B B B B B B BBBB BB B B B B B B B BB B BB B B B B B B B B BB B B BB B B BBBB B BB B B B BB B BBB B B BBB B B BB B BBB B B BBB B B BB B BBBB B B BBB B B B B BB B BBB B B BBB BB B B B B B BB B BB B B B BB B B BBBB B BB B B BB B B BBBB B BB B B BB B B BBBB B BB B B BB B B B BBB B B B BB B B BBB B B BB B B BBB B B BB B B BBBB B B B B BB B B BB B B B B BBBB B B B B B B BBBB B BBBB B BBBB B BB B B BBB B BBB B B BB BB BBB B B B B BBBB B B B B B B BB B B BB B B B B B B BB B B BB B B B B B B BB B B BB B B B B B B BB BB B B B B B B B B BB B B B B B B B B BB B B B B B B B B BBB B B BB B B B B B B BB B B B B B B B B B B BB B BBB B B B BBB B B B B B BBB B B B B BB B B B B B BBBB B BBBB B BB B B B B BB B B BBBB B B B BB B B B B BBB B B B B B BB B BBB B B BBB B B BB B B BBB B B BB B B B B BB B B B B B B B B BB B B B B BBB B B B B B B B B B B B B BB B B BB B B BB B BBBB B B BBB BBBB BB B B B B BB BBBB B B B B B B BB BBB B B B BBB B B B B B B B B B BB B B BBB B B B B B B B B BB B B BBB B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B BBB B B B B B B B BBB B B BBB B B B B B B B B B B B BB B B B B B B B BBBB B B B B B B BBB B B BBB B B B B B B B B B BB B B B BB B B B B B B B B B B B B B B B B B B B B B BBBB B B BB B B B B B B B B B B B BB B B B BBBB B B B B B B B B B B BBBB B B B B BBB B B BBB BBB B B B B B B B B BBB B B B B B BBBBB BBBBB B B B B B B B B BBB B B B BBBBB B B B B B BBBBB B B B B B B B BBB B B BBB B B B B B B B B B B B B BB B B B B B B B B B B B B B B B BB B B BBBB BBBB B B B BB B B B B B B B B B B BB BB BBBBB BBBBB BB BB B B B B B B B B B B B BB B B B BB B B BBBBB BBBBB B B B B B B B B BB BB BB BB B B B B B B BBBBB BBBBB B B B B B B B B B B BBBBB BBBBB BBBBB B BBBBB B B B B B B B B B B B B B B B B BBBB B B B B BBB B B BBB BBB B B BBB B BBBB B B B B B B B B B B B B B B B B BBBBB B B B B B B B B B B BBBBB B B BBBBB B B B B B B BBB BBB B B B BBBBB BBBBB BBBBB BBBBB BBBBB BBBBB BBBBB BBBBB BBBBB BBBBB BBBBB BBBBB BBBBB BBB BBB BBB BBB BBB BBB BBB BBB BBB BBB BBB BBB BBB BBB BBB BBB BBB BBB BBBBB BBBBB BBBBB BBBBB BBBBB B B B B B B B B B B B B BB B B B B BBB B B B B B B BBB B BBBB B B B B B B B B B BBBBB B B B B B B B B BBBB B B B B B B B B B BBBB BBBB B B B B B B BB B B B B B B B B BB B B BB B B B B B B BBBB BB B B B B BB BBBB BB B B B B BBBB B B B B BB B B B B B B B B B B B B BB BB BB B B BB B B B B B B BB B B B B B B B B B BB B B B B B B BB B B B B B BBB B B B BB B B B B B B B B B B B B BBBBB BBBBB BBBBB B B BBB BBB B B BBB B B B B B B B B B B B B B B BB B B B B B B B B B B B B B B B B B B B B BBBBB B B B B B B B B B BB B B B B BB BB BB BB B BB B B B B B B B BB B B B B B B B B B BB B B B BB BBBB BBB BBB BBB BBB