private static void Main()
{
int remainingTestCases = FastIO.ReadNonNegativeInt();
while (remainingTestCases-- > 0)
{
int matrixSize = FastIO.ReadNonNegativeInt();
var solver = new MATSUM(matrixSize);
char command;
while ((command = FastIO.ReadCommand()) != 'E')
{
if (command == 'S')
{
solver.Set(
rowIndex: FastIO.ReadNonNegativeInt(),
columnIndex: FastIO.ReadNonNegativeInt(),
value: FastIO.ReadInt());
}
else
{
FastIO.WriteInt(solver.Query(
nearRowIndex: FastIO.ReadNonNegativeInt(),
nearColumnIndex: FastIO.ReadNonNegativeInt(),
farRowIndex: FastIO.ReadNonNegativeInt(),
farColumnIndex: FastIO.ReadNonNegativeInt()));
FastIO.WriteLine();
}
}
FastIO.WriteLine();
}
FastIO.Flush();
}