{}
{ABC}
{ABCDEFGHIJKLMNOPQRSTUVWXYZ}
({})
({A})
{A}+{Z}
{ABC}+{DEFG}+{Z}+{}
{AC}+({B}+{C})
{ABE}*{ABCD}
{ABCDEFGHIJKLMNOPQRSTUVWXYZ}*{ABCDEFGHIJKLMNOPQRSUVWXYZ}*{ABCDEFGHIJKLMNOPQRSTUVWYZ}*{ABCDEFGHIJKLMNOPQRSTUVWXYZ}
{ABCD}-{CZ}
{ABC}+{CDE}*{CEZ}
({ABC}+{CDE})*{CEZ}
({CDEFGIJKLMNOPQRSTUVWXYZ}-{}+{F})+({ABCDE}-{H}-{A}-{B})
({A})+({ABCD}-{CZ}*{CZ})
(({CDEFGIJKLMNOPQRSTUVWXYZ}-{}+{F})+({ABCDE}-{H}-{A}-{B}))-({A})+({ABCD}-{CZ}+{CZ}*{CZ})
{YZ}+{AB}*{BC}
{YZ}+{AB}*{BC}-{Z}
