		IDENTIFICATION DIVISION.
        PROGRAM-ID. AtCoder.
      
        ENVIRONMENT DIVISION.
      
        DATA DIVISION.
        WORKING-STORAGE SECTION.
        01 INP PIC X(100).
        01 A PIC 9(15).
        01 B PIC 9(15).
        01 C PIC ZZZZZZZZZ.
      	01 t PIC 9(15).
	    01 temp1 PIC 9(15).
        01 temp2 PIC 9(15).
        01 N PIC 9(15).
      
        PROCEDURE DIVISION.
      	MAIN.
			ACCEPT A.
      		COMPUTE C = A * A.
			DISPLAY C.
		STOP RUN.