Program to check whether the given no is Armstrong number or not using FUNCTION

Program to check whether the given no is Armstrong number or not using FUNCTION

DECLARE FUNCTION ARM(N)
CLS
INPUT"ENTER ANY NUMBER";N
A=P
P=ARM
IF A=P THEN
PRINT"The given no is armstrong"
ELSE
PRINT"The given no is not armstrong"
END IF
END

FUNCTION ARM(N)
S=0
WHILE N<>0
R=N MOD 10
S=S+R^3
N=N\10
WEND
ARM=S
END FUNCTION