Input four digits nob & print sum of 1st & last digit.

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#include<stdio.h> main() { int num,sum,a,b,c,d,d1,d2,d3,d4; printf("Enter any four digits number:"); scanf("%d",&num); a=num/10; d4=num%10; b=a/10; d3=a%10; c=b/10; d2=b%10; d=c/10; d1=c%10; sum=d1+d4; printf("\n sum of 1st digitand 4th digit= %d",sum); }

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