What to do Arduino substring data packet. 7E xbee API ?

hi am received values from xbee in side Arduino show on Serial . What to do Arduino substring data packet. 7E xbee API ? I Take cut 31 32 33 to do variable. help me please?

////

void setup() { Serial.begin(9600); }

void loop() {

if (Serial.available()>0) {

Serial.print(Serial.read(),HEX); Serial.print(" "); Serial.print(char())

}

///////////////// sed 7E 00 0E 00 00 00 13 A2 00 40 90 84 EA 01 31 32 33 77 receive 7E 0 8 81 0 0 27 0 31 32 33 C1

Serial.print(Serial.read(),HEX);

If you don't store the data you read, there is no way you can later use some of the data.