\usepackage{color}
\def\black    {\color{black}}
\def\darkgray {\color{darkgray}}
\def\gray     {\color{gray}}
\def\lightgray{\color{lightgray}}
\def\white    {\color{white}}
\def\blue     {\color{blue}}
\def\red      {\color{red}}
\def\green    {\color{green}}
\def\yellow   {\color{yellow}}
\def\magenta  {\color{magenta}}
\def\cyan     {\color{cyan}}
\newcommand{\aerr}[4]   {\mbox{${{#1}^{+ #2}_{- #3}\pm #4}$}}
\newcommand{\berr}[4]   {\mbox{${{#1}\pm #2^{+ #3}_{- #4}}$}}
\newcommand{\cerr}[3]   {\mbox{${{#1}^{+ #2}_{- #3}}$}}
\newcommand{\aerrsy}[5] {\mbox{${{#1}^{+ #2 + #4}_{- #3 - #5}}$}}
\newcommand{\aerrsyt}[7] {\mbox{${{#1}^{+ #2 + #4 + #6}_{- #3 - #5 - #7}}$}}
\newcommand{\berrsyt}[6] {\mbox{${{#1}\pm #2^{+ #3 + #5}_{- #4 - #6}}$}}
\newcommand{\err}[3]   {\mbox{${{#1}\pm{#2}\pm{#3}}$}}
\def\etapr{{\eta^{\prime}}}
\newcommand{\ks}    {\mbox{$K^0_S$}}
\newcommand{\kz}    {\mbox{$K^0$}}
\newcommand{\kzb}   {\mbox{$\overline{K^0}$}}
\def\nodata{}