Given four int variables that have been given values, octet1, octet2, octet3, and octet4, write a string expression whose value is the string equivalent of each these variables joined by a single period so if octet1, octet2, octet3, and octet4, had the values 129, 42, 26, and 212 the expression's value would be "129.42.26.212". alternatively, if octet1, octet2, octet3, and octet4, had the values 192, 168, 1and 44 the expression's value would be "192.168.1.44".