Need to Extract a number from a string below is the input and need the Output as mentioned in this example
Input = SUB 12356 PO 65987568 // Output = 12356
Input = PO 65987568 SUB 12356 // Output = 12356
Input = PO 65987568 SUB for 123567 // Output = 123567
Input = Sub for 12356; po 58965239 // Output = 123456
Input = SUB for 12356; po 58965239 // Output = 123456
