/*/#include<stdio.h>#include<math.h>/*-*/int n,m,c=0;int a100100,b100100;int fc100100;/*-*/void print();void print_sub();void input_marry();void add_marry();void sub_marry();void mut_marry();/*-*/void main()print();scanf("%d",&c);while(c!=0)if(c=1) input_marry();if(c=2) add_marry();if(c=3) sub_marry();if(c=4) mut_marry();if(c=0) c=0;printf("nn");scanf("%d",&c);/*-*/void print()printf(" n");printf("-n");printf("1 n");printf("2 n");printf("3 n");printf("4 n");printf("0 n");printf("-n");printf(":nn");/*-*/void input_marry()int i,j;printf("nn");scanf("%d",&n);m=n*n;/*-*/printf("a%4d:nn",m);dom-;for(i=0;i<n;i+)for(j=0;j<n;j+)scanf("%d",&aij);while(m<0);/*-*/printf("a=nn");for(i=0;i<n;i+)for(j=0;j<n;j+)printf("%10d",aij);if(j=n-1)printf("n");/*-*/m=n*n;printf("b%4d:nn",m);dom-;for(i=0;i<n;i+)for(j=0;j<n;j+)scanf("%d",&bij);while(m<0);/*-*/printf("b=nn");for(i=0;i<n;i+)for(j=0;j<n;j+)printf("%10d",bij);if(j=n-1)printf("n");print_sub();/*-*/void add_marry()int i,j;for(i=0;i<n;i+)for(j=0;j<n;j+) fcij=0;fcij=aij+bij;printf("nn");for(i=0;i<n;i+)for(j=0;j<n;j+)printf("%10d",fcij);if(j=n-1)printf("n");print_sub();/*-*/void sub_marry()int i,j;for(i=0;i<n;i+)for(j=0;j<n;j+) fcij=0;fcij=aij-bij;printf("nn");for(i=0;i<n;i+)for(j=0;j<n;j+)printf("%10d",fcij);if(j=n-1)printf("n");print_sub();/*-*/void mut_marry()int k,i,j;for (i=0;i<n;i+)for (j=0;j<n;j+) fcij=0;for (k=0;k<n;k+)fcij+=aik*bkj;printf("nn");for(i=0;i<n;i+)for(j=0;j<n;j+)printf("%10d",fcij);if(j=n-1)printf("n");print_sub();/*-*/void print_sub()printf("n-n");printf("n2 3 4 0 n");printf("n-n");