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      boolalpha 	= 1L << 0,  // ==1
      dec 		= 1L << 1,  // ==2
      fixed 		= 1L << 2,  // ==4
      hex 		= 1L << 3,  // ==8
      internal          = 1L << 4,  // ==16
      left 		= 1L << 5,  // ==32
      oct 		= 1L << 6,  // ==64
      right 		= 1L << 7,  // ==128
      scientific 	= 1L << 8,  // ==256
      showbase  	= 1L << 9,  // ==512
      showpoint  	= 1L << 10,  // ==1024
      showpos    	= 1L << 11,  // ==2048
      skipws        	= 1L << 12,  // ==4096
      unitbuf        	= 1L << 13,  // ==8192
      uppercase 	= 1L << 14,  // ==16384
      adjustfield 	= left | right | internal,   // == 32+128 + 16
      basefield 	= dec | oct | hex,         // ==  2 + 8 + 64
      floatfield 	= scientific | fixed,    // == 256 + 4 | 
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