IDENTIFICATION DIVISION.
PROGRAM-ID. CALC.
ENVIRONMENT DIVISION.
DATA DIVISION.
WORKING-STORAGE SECTION.
OPCAO PIC 9(1)VALUE ZEROS.
PROCEDURE DIVISION.
INICIO.
IF OPCAO = 1
DISPLAY"OLA"
ELSE
DISPLAY"MUNDO"
END-IF.
STOP RUN.
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prog.cob:1: Warning: Invalid indicator 'F' at column 7
prog.cob:4: Warning: Invalid indicator 'I' at column 7
prog.cob:6: Warning: Invalid indicator 'G' at column 7
prog.cob:8: Warning: Invalid indicator 'U' at column 7
prog.cob:1: Error: syntax error, unexpected WORD, expecting PROGRAM_ID