Toy Language Interpreter

Problem Description Implement a simple interpreter to execute basic toy language instructions. Your task is to parse and execute the following types of commands: Variable Assignment: x = 5, assign an integer value to a variable. Addition Operation: x = x + 2, support simple integer addition. Print Instruction: PRINT x, print the value of a variable to the console. Sample Input x = 5 x = x + 2 PRINT x Sample Output 7 Constraints Variable names are single lowercase letters. Operands are integers. Parentheses are not supported. At most 50 instructions. Test Cases x = 3\ny = 4\nPRINT x should output 3. a = 1\na = a + 1\nPRINT a should output 2. x = 10\nx = x + x\nPRINT x should output 20. z = 0\nz = z + 5\nPRINT z should output 5. y = 5\nPRINT y\ny = y + 3\nPRINT y should output 5\n8. Example Input x = 3\ny = 4\nPRINT x