For adding

# output: "42"
"4" + 2

# output: 6
2 + "4"

# output: 1, 2, 3, "hello"
1, 2, 3 + "hello"

# output: "hello 1 2 3"
"hello" + 1, 2, 3

For Multiplication

# outpout: "33"
"3" * 2

# output: 6
2 * "3"

# output: 1, 2, 3, 1, 2, 3
1, 2, 3 * 2

# output: Error
2 * 1, 2, 3