···100100 "sub": func(a, b int) int {
101101 return a - b
102102 },
103103- "mul": func (a, b int) int {
103103+ "mul": func(a, b int) int {
104104 return a * b
105105 },
106106- "div": func (a, b int) int {
106106+ "div": func(a, b int) int {
107107 return a / b
108108 },
109109 "mod": func(a, b int) int {