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  1. #include <stdio.h>
  2.  
  3. int main(void) {
  4. // your code goes here
  5. int data1,data2;
  6. char op;
  7. printf("please enter the expression data1+data2\n");
  8. scanf("%d%c%d",&data1,&op,&data2);
  9. printf("%d%c%d=%d\n",data1,op,data2,data1+data2);
  10.  
  11. return 0;
  12. }
  13.  
Success #stdin #stdout 0s 5308KB
stdin
9999999999999999999999999+8888888888888888888888888
stdout
please enter the expression data1+data2
-1+-1=-2