#! /n/gnu/bin/gawk -f

function prt()
  { if (n != 0) { printf "%s(%d) ", w, n; } }

BEGIN { w=""; n=0; }

/./ { if ( $2 != w ) { prt(); n = 0; w = $2; }
      n += $1; 
    }
    
END { prt(); printf "\n"; }