simple_solver.py

# Simple solver
import os
os.system("clear")

print("Simple Solver")
print("Enter a problem in the following format using integers only: ")
print("1 2 3 == 7")
print("Type q to quit")

def solver(x, y, z, answer):
    # Definte list of possible operators
    operations = ["+", "-", "*", "/", "%"]

    # Assume no solution found
    solution_found = False;

    # Iterate through all possibilities
    for o1 in operations:
        for o2 in operations:
            equation = "{} {} {} {} {}".format(x, o1, y, o2, z)
            if eval(equation) == answer:
                print("\n{} = {}".format(equation, answer))
                solution_found = True

    # Check if solution not found
    if not solution_found:
        print("No solution found")

while True:
    # Get the problem from the user
    problem = input("\n> ")

    # Split into tokens
    tokens = problem.split()

    if tokens[0] == "q":
        break

    try:
        # Convert to integers
        x = int(tokens[0])
        y = int(tokens[1])
        z = int(tokens[2])
        answer = int(tokens[-1])
    except:
        print("Invalid input")
        continue

    solver(x, y, z, answer)

print("\nThe end")